component guide screw conveyors...one of the largest conveyor manufacturers in north america and...
TRANSCRIPT
DesignEngineeringManufacturing
COMPONENT GUIDE
Screw Conveyors
Conveying Knowledge, Workmanship, Solutions
ISO 9001CertifiedRelease Date 8.1.16
KWS PrOfIlE
Founded in 1972, KWS Manufacturing Company, Ltd, is the leader in the design and manufacture of conveying equipment for the bulk material handling industry. Our primary Customers are power transmission distributors, end users, engineering firms, system suppliers and original equipment manufacturers (OEMs).
As an ISO 9001 certified manufacturer, KWS provides the highest quality equipment and service to our Customers. The KWS name stands for Knowledge, Workmanship and Solutions. Our large number of repeat Customers shows our commitment to Customer satisfaction. Our quality system ensures that your equipment is designed and manufactured to rigid specifications and validated by exceeding performance expectations.
We also offer complete system design and engineered solutions for our Customers. KWS is one of the largest conveyor manufacturers in North America and continues to grow every year.
KWS SCrEW CONVEYOr COMPONENT GUIDE
Screw conveyors are a cost effective and reliable method of conveying bulk materials. Thousands of bulk materials are conveyed and processed daily utilizing screw conveyors. The KWS Screw Conveyor Component Guide is an excellent resource for understanding and selecting the proper components for screw conveyors. The component guide is easy to use, with descriptions of every screw conveyor component and their proper use. Recommendations are provided to assist the screw conveyor designer on how to properly select components for a specific application.
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Screw Conveyor Component Guide
Table Of COnTenTs
Using the KWS Screw Conveyor Guide . . . . . . . . . . . . . . . 1
Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Basic Conveyor Flight and Pitch Types . . . . . . . . . . . . . . . 4
Conveyor Screws: Helicoid Versus Sectional . . . . . . . . . . . 6
Helicoid Screw and Flighting . . . . . . . . . . . . . . . . . . . . . . . 7
Sectional Screw and Flighting . . . . . . . . . . . . . . . . . . . . . . 8
Ribbon Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cut Screw / Cut and Folded Screw . . . . . . . . . . . . . . . . . 11
Paddle Screw Conveyors . . . . . . . . . . . . . . . . . . . . . . . . . 12
Screw Conveyor Finishes . . . . . . . . . . . . . . . . . . . . . . . . 13
KWS Hardsurfacing for Abrasive Applications . . . . . . . . . 16
Internal Collars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
End Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Coupling Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
U-Trough Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Flared Trough Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Hanger Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Style 216 Hanger Bearing . . . . . . . . . . . . . . . . . . . . . . . . 26
Style 226 Hanger Bearing . . . . . . . . . . . . . . . . . . . . . . . . 27
Style B Hanger Bearings . . . . . . . . . . . . . . . . . . . . . . . . . 27
Trough Ends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Trough Ends without Feet . . . . . . . . . . . . . . . . . . . . . . . . 30
Trough Ends with Feet . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Pedestal Trough Ends . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Flush End Discharge Trough Ends . . . . . . . . . . . . . . . . . . 35
Bulkhead Trough Ends . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Torque Arm Trough Ends . . . . . . . . . . . . . . . . . . . . . . . . . 38
Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Plate and Waste Pack Seal . . . . . . . . . . . . . . . . . . . . . . . 40
Split Gland and Flanged Gland Seal . . . . . . . . . . . . . . . . 41
End Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Roller Bearing Flange Unit . . . . . . . . . . . . . . . . . . . . . . . . 43
Ball Bearing Flange Unit . . . . . . . . . . . . . . . . . . . . . . . . . 43
Roller Bearing Pillow Block . . . . . . . . . . . . . . . . . . . . . . . 44
Ball Bearing Pillow Block . . . . . . . . . . . . . . . . . . . . . . . . 44
Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Coupling Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Close Coupling Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
End Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Hanger End Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Roller Thrust Bearing Shaft . . . . . . . . . . . . . . . . . . . . . . . 50
Bulkhead Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Torque Arm Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
U-Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Flared Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Tubular Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Rectangular Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Plate End Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
U–Trough Plate End Flanges . . . . . . . . . . . . . . . . . . . . . . 62
Flared Trough Plate End Flanges . . . . . . . . . . . . . . . . . . . 64
Tubular Trough Plate End Flanges . . . . . . . . . . . . . . . . . . 66
Rectangular Plate End Flanges . . . . . . . . . . . . . . . . . . . . 68
U–Trough and Rectangular Flush End Plate End Flange . . 70
Discharge Spouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Inlet Spouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Buttstraps and Batten Bars . . . . . . . . . . . . . . . . . . . . . . . 78
Hanger Pocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Saddles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Bolt Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Drive Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
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Screw Conveyor Component Guide
1
Screw Conveyor Component Guide
CaRbOn sTeel sTOCK COmpOnenTs
Using The KWs sCReW COnveyOR gUide
Each component specified in the KWS Screw Conveyor Component Guide can be used in
the design and manufacture of screw conveyors and screw feeders. A very wide selection of
components is provided so the engineer or designer can customize each screw conveyor or screw
feeder for a specific application or need. Screw conveyors and screw feeders are used throughout
the world for conveying and metering thousands of bulk materials and are the most versatile of all
mechanical conveying devices.
The KWS Screw Conveyor Component Guide provides a description of each component along with
dimensional information, weight and stock availability. KWS also offers the KWS Screw Conveyor
Engineering Guide to better understand the design of screw conveyors and screw feeders.
An example of KWS part number nomenclature is shown below. Please note that dimensions and
weights of some standard components could change as design improvements are made, so please
contact KWS Engineering or your KWS salesperson before finalizing your design.
NOMENClaTUrE
Each component will contain either a ”Conveyor Diameter (Conv. Dia.)” or ”Shaft Dia.”, or both in order to help identify the size of the component
Component Family Name
Special Features
T E F O 9 2 U B BTE = Trough End
BB = Drilled for Ball BearingRB = Drilled for Roller BearingBBRB = Slotted for Ball and Roller Bearing
O = Outside Pattern
U = U-Trough
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
Special FeaturesW = Without Foot FE = Flush End
F = With Foot BH = BulkheadP = Pedestal TA = Torque Arm
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Screw Conveyor Component Guide
sCReWs
Screws can be configured for every application. The Basic Conveyor Flight and Pitch Type Section
provides descriptions of various types of screws that can be used in a multitude of bulk material
conveying and processing applications.
The use of helicoid or sectional screws is dependent upon the requirements of the application and
the needs of the end user. In general, helicoid screws are used in light to medium duty applications,
and are more cost effective when compared to sectional screws. Sectional screws can be configured
for almost every type of application with special features such as ribbon or cut-and-folded flighting.
Sectional screws can also be manufactured from special materials such as AR-235 or 316 stainless
steel.
Screw section length is also dependent upon the requirements of the application and the needs of
the end user. Standard screw lengths and hanger bearings can be used where the bulk material is
non-abrasive and free-flowing. Single length screws are recommended for abrasive, heavy industrial
applications.
Screws are available in right and left hand construction. Right hand screws are much more common
and are recommended for almost every application. Spare parts are more readily available for right
hand screws. The ”hand” of a screw along with the direction of rotation of the screw determine the
direction of bulk material flow. The diagrams below illustrate the direction of bulk material flow for
both right hand and left hand screws when rotated clockwise or counter clockwise. The rotation
arrows indicate the location of the motor and gear reducer. The direction of bulk material flow is
reversed when the direction of rotation is reversed.
A right hand screw with the motor and gear reducer located on the discharge end pulls the bulk
material toward the discharge end and rotates clockwise.
A left hand screw with the motor and gear reducer located on the discharge end pulls the bulk
material toward the discharge end and rotates counter-clockwise.
To determine the hand of a screw, observe the slope of the near side of the flighting. If the slope is
downward to the right, then the screw is right hand. If the slope is downward to the left, the screw is
left hand.
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Screw Conveyor Component Guide
sCReWs
4
Screw Conveyor Component Guide
basiC COnveyOR flighT and piTCh Types
STANDARD PITCH, SINGLE FLIGHT VARIABLE PITCH, SINGLE FLIGHT
Standard pitch, single flight screws have the outside diameter equal to the pitch and are the most common screw type used for horizontal screw conveyors and inclines up to 10-degrees.
Variable pitch, single flight screws have increasing pitch with every flight and are used in screw feeders to provide uniform withdrawal of free-flowing bulk materials from hoppers, bins or silos.
SHORT PITCH, SINGLE FLIGHT STANDARD PITCH, DOUBLE FIGHT
Short pitch, single flight screws have the pitch reduced to 2/3 of the diameter and are most commonly used in inclined and vertical screw conveyor applications. Short pitch is also used in some variable pitch screw feeder applications.
Standard pitch, double flight screws have the outside diameter equal to the pitch, very similar to standard pitch, single flight. A second set of flights is added 180-degrees apart from the first set of flights to provide a more even discharge of bulk materials.
HALF PITCH, SINGLE FLIGHT STANDARD PITCH, TAPERED SINGLE FLIGHT
Half pitch, single flight screws have the pitch reduced to 1/2 of the diameter and are commonly used in inclined and vertical screw conveyor applications. 1/2 pitch is also used in some variable pitch screw feeder applications.
Standard pitch, single tapered flight screws have a tapered outside diameter increasing from 1/2 to full diameter and are used in screw feeders to provide uniform withdrawal of free-flowing bulk materials from hoppers, bins or silos.
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Screw Conveyor Component Guide
STANDARD PITCH, SINGLE RIBBON FLIGHT STANDARD PITCH, SINGLE FLIGHT WITH
PADDLES
Standard pitch, single ribbon flight screws have a space within the flight and around the center pipe to minimize the collection and buildup of viscous and sticky bulk materials.
Standard pitch, single flight with paddles screws have adjustable paddles located between screw flights. Up to four paddles per pitch can be added for gentle and thorough mixing of bulk materials.
STANDARD PITCH, SINGLE CUT FLIGHT STANDARD PITCH, PADDLE
Standard pitch, single cut flight screws are notched at regular intervals on the outer edge to promote mixing and agitation of bulk materials.
Standard pitch, paddle screws have adjustable paddles located in a helix around the diameter of the center pipe. Up to four paddles per pitch can be used for aggressive mixing and controlled flow of bulk materials.
STANDARD PITCH, SINGLE CUT AND FOLDED
FLIGHT
MASS FLOW
Standard pitch, single cut and folded flight screws are notched at regular intervals on the outer edge and have lifting paddles to promote aggressive mixing and agitation of bulk materials.
Mass flow screws utilize a combination of internal cone and variable pitch to provide increasing volume with every flight and are used in screw feeders to provide uniform withdrawal of bulk materials from hoppers, bins or silos.
basiC COnveyOR flighT and piTCh TypesA B
E
D
D
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Screw Conveyor Component Guide
COnveyOR sCReWs: heliCOid veRsUs seCTiOnal
HELICOID FLIGHT SCREW CONVEYORS SECTIONAL FLIGHT SCREW CONVEYORS
Helicoid flighting is cold rolled from special
steel into a continuous helix that produces a
work-hardened, smoothly finished flighting
surface. It is very cost-effective and provides
superior strength with diameter, pitch and
thickness closely controlled. Helicoid screws
are manufactured by mounting helicoid flighting
on a center pipe and fastening by intermittent
welds. Continuous welding on the carrying side
or both sides is also available. Internal collars
are inserted in each end and plug welded to
accommodate shafts. Screws are structurally
reinforced at the ends by end lugs.
Sectional flighting is manufactured from steel
plate and formed into a helix. Sectional flighting
is available in heavier thicknesses than helicoid
flighting and used in more abrasive applications.
Sectional screws are manufactured by mounting
sectional flighting on a center pipe, butt welding
each flight together and fastening by intermittent
welds. Continuous welding on the carrying
side or both sides is also available. Internal
collars are inserted in each end and plug
welded to accommodate shafts. Screws can be
structurally reinforced at the ends by end lugs.
1 2 H F 4 0 8 R
F = Flights onlyBlank = Complete screw
NOMENClaTUrE
Conv. TypeH = Helicoid R = Ribbon
S = Sectional
Coupling Diameter2 = 1” 6 = 3”3 = 1-1/2” 7 = 3-7/16”4 = 2” 8 = 3-15/16”5 = 2-7/16” 9 = 4-7/16”
Flight Thickness (in increments of 1/64”)Applicable to outer edge of helicoid conveyor flight only and sectional conveyor flight overall
Flight HandR = RightL = Left
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
Blank = NormalCF = Cut Flights
CFF = Cut & Folded Flights
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Screw Conveyor Component Guide
heliCOid sCReW and flighTing
A BPart
Number
Screw Coupling
Dia
Pipe Sch 40 L A B D EAverage Weight
Per Ft . (Lbs ./Ft .)
Screw Dia . Pitch Size C
Pipe OD Std . Length Diameter Tolerance
Pitch Tolerance Flight Thickness Complete
ScrewFlight OnlyPlus Minus Plus Minus Root Tip
4” 4” 4H#206•* 1” 1-1/4” 1-21/32” 9’ - 10-1/2” 1/16” 1/8” 1/2” 1/4” 3/16” 3/32” 4 2
6” 6”6H#304•*
1-1/2” 2” 2-3/8” 9’ - 10” 1/16” 3/16” 1/2” 1/4”1/8” 1/16” 5 2
6H#308•* 1/4” 1/8” 6 36H#312•* 3/8” 3/16” 7 5
9” 9”
9H#306•*1-1/2” 2” 2-3/8”
9’ - 10” 1/16”
3/16”
3/4” 1/4”
3/16” 3/32” 7 39H#312•* 3/8” 3/16” 10 79H#406•*
2” 2-1/2” 2-7/8”3/16” 3/16” 3/32” 9 3
9H#412•*1/4”
3/8” 3/16” 12 69H#414•* 7/16” 7/32” 13 7
12” 12”
12H#408•*2” 2-1/2” 2-7/8” 11’ - 10”
1/8” 5/16” 1” 1/4”
1/4” 1/8” 12 612H#412•* 3/8” 3/16” 15 912H#508•*
2-7/16” 3” 3-1/2” 11’ - 9”1/4” 1/8” 14 6
12H#512•* 3/8” 3/16” 17 812H#614•* 3” 3-1/2” 4” 11’ - 9” 1/8” 3/8” 1” 1/4” 7/16” 7/32” 19 9
14” 14”14H#508•* 2-7/16” 3” 3-1/2” 11’ - 9” 1/8” 5/16” 1” 1/4” 1/4” 1/8” 14 714H#614•* 3” 3-1/2” 4” 11’ - 9” 1/8” 3/8” 1” 1/4” 7/16” 7/32” 22 11
16” 16”16H#610•*
3”3-1/2” 4”
11’ - 9” 1/8” 3/8” 1-1/2” 1/4”5/16” 5/32” 19 10
16H#614•* 4” 4-1/2” 7/16” 7/32” 24 13
# F = Flighting Only, Blank = Screw • R = Right Hand Flighting, L = Left Hand Flighting * Only Right Hand Flighting is a KWS Stock Component
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Screw Conveyor Component Guide
seCTiOnal sCReW and flighTing
A B
Part NumberScrew
Coupling Dia
Pipe Sch 40 L A B D Average Weight
Screw Dia .
Pitch SizeC
Pipe ODStd .
Length
Diameter Tolerance
Pitch Tolerance
Flight Thickness
Complete Screw
(Lbs ./Ft .)
Flight Only
(Lbs ./ea .)Plus Minus Plus Minus4” NOT AVAILABLE
6” 6”
6S#307•
1-1/2” 2” 2-3/8” 9’ - 10” 1/16” 3/16” 3/8” 1/4”
12 Ga . 6 16S#309• 10 Ga . 6 26S#312• 3/16” 7 26S#316•* 1/4” 8 3
9” 9”
9S#307•
1-1/2” 2” 2-3/8” 9’ - 10” 1/16” 3/16” 1/2” 1/4”
12 Ga . 6 39S#309• 10 Ga . 7 49S#312• 3/16” 9 59S#316•* 1/4” 11 69S#324•* 3/8” 14 99S#407•
2” 2-1/2” 2-7/8” 9’ - 10” 1/16”
3/16”
1/2” 1/4”
12 Ga . 9 39S#409• 3/16” 10 Ga . 10 49S#412• 3/16” 3/16” 11 59S#416• 1/4” 1/4” 13 69S#424•* 1/4” 3/8” 16 9
12” 12”
12S#409•
2” 2-1/2” 2-7/8” 11’ - 10” 1/8” 5/16” 3/4” 1/4”
10 Ga . 11 612S#412• 3/16” 13 712S#416•* 1/4” 15 1412S#424•* 3/8” 19 2012S#509•
2-7/16” 3” 3-1/2” 11’ - 9” 1/8” 5/16” 3/4” 1/4”
10 Ga . 13 612S#512• 3/16” 15 712S#516• 1/4” 17 1012S#524•* 3/8” 21 1512S#612•
3” 3-1/2” 4” 11’ - 9” 1/8”5/16”
3/4” 1/4”3/16” 16 7
12S#616• 5/16” 1/4” 18 1012S#624•* 3/8” 3/8” 22 13
# F = Flighting Only, Blank = Screw • R = Right Hand Flighting, L = Left Hand Flighting * Only Right Hand Flighting is a KWS Stock Component
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Screw Conveyor Component Guide
seCTiOnal sCReW and flighTing
A B
Part NumberScrew
Coupling Dia
Pipe Sch 40 L A B D Average Weight
Screw Dia .
Pitch SizeC
Pipe ODStd .
Length
Diameter Tolerance
Pitch Tolerance
Flight Thickness
Complete Screw
(Lbs ./Ft .)
Flight Only
(Lbs ./ea .)Plus Minus Plus Minus
14” 14”
14S#509•
2-7/16” 3” 3-1/2” 11’ - 9” 1/8” 5/16” 3/4” 1/4”
10 Ga . 14 714S#512• 3/16” 16 1014S#516•* 1/4” 19 1314S#524• 3/8” 23 2014S#612•
3” 3-1/2” 4” 11’ - 9” 1/8”5/16”
3/4” 1/4”3/16” 18 11
14S#616• 5/16” 1/4” 20 1314S#624•* 3/8” 3/8” 25 20
16” 16”
16S#609•
3” 3-1/2” 4” 11’ - 9” 1/8”
3/8”
3/4” 1/4”
10 Ga . 15 1016S#612• 3/8” 3/16” 19 1416S#616• 3/8” 1/4” 22 1816S#624•* 3/8” 3/8” 27 2616S#632• 1/2” 1/2” 33 35
18” 18”
18S#612•
3” 3-1/2” 4” 11’ - 9” 3/16”
3/8”
3/4” 1/2”
3/16” 20 1818S#616• 3/8” 1/4” 23 2418S#624•* 3/8” 3/8” 29 3518S#632• 1/2” 1/2” 36 4618S#712•
3-7/16” 4” 4-1/2” 11’ - 8” 3/16”
3/8”
3/4” 1/2”
3/16” 22 1818S#716• 3/8” 1/4” 25 2418S#724• 3/8” 3/8” 31 3518S#732• 1/2” 1/2” 37 46
20” 20”
20S#612•
3” 3-1/2” 4” 11’ - 9” 3/16”
3/8”
7/8” 1/2”
3/16” 21 2020S#616• 3/8” 1/4” 25 2820S#624•* 3/8” 3/8” 32 4020S#632• 1/2” 1/2” 39 5620S#712•
3-7/16” 4” 4-1/2” 11’ - 8” 3/16”
3/8”
7/8” 1/2”
3/16” 23 2020S#716• 3/8” 1/4” 26 2820S#724•* 3/8” 3/8” 33 4020S#732• 1/2” 1/2” 40 56
24” 24”
24S#712•
3-7/16” 4” 4-1/2” 11’ - 8” 3/16”
3/8”
7/8” 1/2”
3/16” 25 3824S#716• 3/8” 1/4” 30 4224S#724•* 3/8” 3/8” 38 6324S#732• 1/2” 1/2” 46 84
30” 30”30S#816•
3-15/16” 5” 5-9/16” 11’ - 8” 3/16”3/8”
7/8” 1/2”1/4” 38 54
30S#824 • 3/8” 3/8” 50 7030S#832• 1/2” 1/2” 59 83
36” 36”36S#916•
4-7/16” 6” 6-5/8” 11’ - 7” 3/16”3/8”
7/8” 1/2”1/4” 47 63
36S#924• 3/8” 3/8” 60 8036S#932• 1/2” 1/2” 73 98
# F = Flighting Only, Blank = Screw • R = Right Hand Flighting, L = Left Hand Flighting * Only Right Hand Flighting is a KWS Stock Component
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Screw Conveyor Component Guide
RibbOn sCReW
A B
Part Number
Screw Coupling
Dia
Pipe Sch 40 L A B D E Average Weight
Screw Dia . Pitch Size
C Std . Length
Diameter Tolerance Pitch Tolerance Flight
Thickness Flight Width
Complete Screw
(Lbs ./Ft .)
Flight Only (Lbs ./ea .)
Pipe OD Plus Minus Plus Minus
4” NOT AVAILABLE
6” 6” 6R312• 1-1/2” 2” 2-3/8” 9' - 10” 1/16” 3/16” 3/8” 1/4” 3/16” 1” 7 2
9” 9”9R316• 1-1/2” 2” 2-3/8”
9’ - 10” 1/16”3/16”
1/2” 1/4”1/4”
1-1/2”10 5
9R424• 2” 2-1/2” 2-7/8” 1/4” 3/8” 15 8
12” 12”
12R416•2” 2-1/2” 2-7/8” 11’ - 10”
1/8”5/16”
3/4” 1/4”
1/4” 2” 14 13
12R424•
3/8” 2-1/2”
18 19
12R524• 2-7/16” 3” 3-1/2”11’ - 9”
20 14
12R624• 3” 3-1/2” 4” 3/8” 21 12
14” 14”14R524• 2-7/16” 3” 3-1/2”
11’ - 9” 1/8”5/16”
3/4” 1/4” 3/8” 2-1/2”22 19
14R624• 3” 3-1/2” 4” 3/8” 24 19
16” 16”16R616•
3” 3-1/2” 4” 11’ - 9” 1/8” 3/8” 3/4” 1/4”1/4”
2-1/2”21 17
16R624• 3/8” 26 25
18” 18”18R624• 3” 3-1/2” 4” 11’ - 9”
3/16” 3/8” 3/4” 1/2” 3/8” 3”28 34
18R724• 3-7/16” 4” 4-1/2” 11’ - 8” 30 34
20” 20”20R624• 3” 3-1/2” 4” 11’ - 9”
3/16” 3/8” 7/8” 1/2” 3/8” 3”31 39
20R724• 3-7/16” 4” 4-1/2” 11’ - 8” 32 39
24” 24” 24R724• 3-7/16” 4” 4-1/2” 11’ - 8” 3/16” 3/8” 7/8” 1/2” 3/8” 3” 37 62
30” 30” 30R824• 3-15/16” 5” 5-9/16” 11’ - 8” 3/16” 3/8” 7/8” 1/2” 3/8” 4” 49 69
36” 36” 36R924• 4-7/16” 6” 6-5/8” 11’ - 7” 3/16” 3/8” 7/8” 1/2” 3/8” 4” 59 79
• R = Right Hand Flighting, L = Left Hand Flighting
11
Screw Conveyor Component Guide
CUT sCReW / CUT and fOlded sCReW
A BPart
Number
Screw Coupling
Dia
Pipe Sch 40 L A BFlight
Thickness
D E F Average Weight
Screw Dia . Pitch Size
C Std . Length
Diameter Tolerance
Pitch Tolerance Length of
Upper Cut Length of Lower Cut
Depth of Cut
Complete Screw
(Lbs ./Ft .)
Flight Only (Lbs ./ea .)
Pipe OD Plus Minus Plus Minus4” NOT AVAILABLE6” 6” 6S312•-# 1-1/2” 2” 2-3/8” 9' - 10” 1/16” 3/16” 3/8” 1/4” 3/16” 2” 1-1/2” 7/8” 7 2
9” 9”9S316•-# 1-1/2” 2” 2-3/8”
9’ - 10” 1/16”3/16”
1/2” 1/4”1/4”
3” 2-1/8” 1-1/2”11 6
9S424•-# 2” 2-1/2” 2-7/8” 1/4” 3/8” 16 9
12” 12”
12S416•-#2” 2-1/2” 2-7/8” 11’ - 10”
1/8”5/16”
3/4” 1/4”
1/4”
4” 2-3/4” 2”
15 1412S424•-#
3/8”19 20
12S524•-# 2-7/16” 3” 3-1/2”11’ - 9”
21 1512S624•-# 3” 3-1/2” 4” 3/8” 22 13
14” 14”14S524•-# 2-7/16” 3” 3-1/2”
11’ - 9” 1/8”5/16”
3/4” 1/4” 3/8” 4-5/8” 3-1/8” 2-1/2”23 20
14S624•-# 3” 3-1/2” 4” 3/8” 25 20
16” 16”16S616•-#
3” 3-1/2” 4” 11’ - 9” 1/8” 3/8” 3/4” 1/4”1/4”
5-1/4” 3-1/2” 3”22 18
16S624•-# 3/8” 27 26
18” 18”18S624•-# 3” 3-1/2” 4” 11’ - 9”
3/16” 3/8” 3/4” 1/2” 3/8” 6” 3-7/8” 3-3/8”29 35
18S724•-# 3-7/16” 4” 4-1/2” 11’ - 8” 31 35
20” 20”20S624•-# 3” 3-1/2” 4” 11’ - 9”
3/16” 3/8” 7/8” 1/2” 3/8” 6-5/8” 4-1/4” 3-7/8”32 40
20S724•-# 3-7/16” 4” 4-1/2” 11’ - 8” 33 4024” 24” 24S724•-# 3-7/16” 4” 4-1/2” 11’ - 8” 3/16” 3/8” 7/8” 1/2” 3/8” 7-7/8” 4-7/8” 4-7/8” 38 6330” 30” 30S824•-# 3-15/16” 5” 5-9/16” 11’ - 8” 3/16” 3/8” 7/8” 1/2” 3/8” 9-9/32” 5-23/32” 5-3/4” 50 7036” 36” 36S924•-# 4-7/16” 6” 6-5/8” 11’ - 7” 3/16” 3/8” 7/8” 1/2” 3/8” 11-1/8” 7-3/16” 6-3/8” 60 80
• R = Right Hand Flighting, L = Left Hand Flighting # CF = Cut Flight Screw, CFF = Cut and Folded Flight Screw
12
Screw Conveyor Component Guide
paddle sCReW COnveyORs
SPACING - 3PADDLES PERPITCH AT 120°
FIRST PADDLE FROMEITHER END USED AS COUPLING BOLT VARIABLE DEPENDING
ON CONVEYOR LENGTH
SPACING 1-1/4 PITCHESAPART AT 90° FROMPRECEDING PADDLE
PADDLES TO BE MOUNTEDOPPOSITE HAND OF FLIGHTING
paddles
BF
CA
D
RADIUS EQUALSPIPE O.D.
sTyle 1: adjUsTable sTyle 2: Welded
Screw Dia .
Part Number
Cplg .Dia . Pipe Size
A B C D E F GWt . Each Paddle (Lbs .)
4” PAD42 1” 1-1/4” 2” 1-1/2” 1-3/16” 3/16” 3/8” 7/8” 1/2” 0 .256” PAD63 1-1/2” 2” 3” 2-1/16” 1-13/16” 1/4” 1/2” 1-7/16” 5/8” 0 .50
9” PAD93 PAD94
1-1/2” 2”
2” 2-1/2” 4-1/2” 2-3/4” 3-5/16”
3-1/16” 1/4” 1/2” 5/8”
1-1/2” 1-3/4”
5/8” 3/4”
0 .50 0 .75
12”PAD124 PAD125 PAD126
2” 2-7/16”
3”
2-1/2” 3”
3-1/2”6” 3-11/16”
4-9/16” 4-1/4”
4”3/8”
5/8” 5/8” 3/4”
1-3/4” 1-7/8”
2”
3/4” 3/4” 7/8”
1 .50 1 .75 2 .00
14” PAD145 PAD146
2-7/16” 3”
3” 3-1/2” 7” 4-1/4” 5-1/4”
5” 3/8” 5/8” 3/4”
2” 2-1/8”
3/4” 7/8”
2 .25 2 .50
16” PAD166 PAD166
3” 3”
3-1/2” 4” 8” 4-15/16” 6”
5-3/4” 3/8” 3/4” 7/8”
2-1/4” 2-3/8”
7/8” 1”
3 .25 3 .50
18” PAD186 PAD187
3” 3-7/16”
3-1/2” 4” 9” 5-3/8” 7”
6-3/4” 3/8” 3/4” 7/8”
2-1/8” 2-1/4”
7/8” 1”
4 .00 4 .25
20” PAD206 PAD207
3” 3-7/16”
3-1/2” 4” 10” 6-1/8” 8”
7-3/4” 3/8” 3/4” 7/8”
2-7/16” 2-9/16”
7/8” 1”
4 .75 5 .00
24” PAD247 3-7/16” 4” 12-1/8” 7-3/8” 9-7/8” 1/2” 7/8” 2-11/16” 1” 6 .7530” PAD308 3-15/16” 5” 15” 9-1/2” 12” 1/2” 7/8” 3-1/4” 1” 7 .5036” PAD369 4-7/16” 6” 18” 11-3/8” 15” 5/8” 7/8” 3-9/16” 1” 9 .25
B
CA
UT & JAM ORSELF LOCKING NUT
D
E
LOOSE HEX NUTG DIA.
13
Screw Conveyor Component Guide
sCReW COnveyOR sURfaCe finishes
The surface finish of the interior and exterior of a screw conveyor can be very important to
the success of the overall bulk material process. Certain bulk materials such as chemicals
or food products require special finishes to maintain the integrity of the bulk material
and prevent contamination. Understanding the bulk material process is very important to
determining the proper surface finish of a screw conveyor.
Most industrial applications such as conveying limestone, biosolids or offal require no
special polishing of the welds, flights or pipe on the interior of a screw conveyor. Likewise,
the exterior of a screw conveyor requires no special polishing of the welds or surfaces of
the troughs, trough ends or covers. Pits and crevices are allowed at welded joints because
the bulk material will not contaminate or corrode.
Special industrial applications such as conveying food ingredients or specialty chemicals
require special polishing of the welds, flights and pipe on the interior of a screw conveyor.
Continuous welding of the flights to both sides of the center pipe is typically required to
eliminate any pits or crevices. The surfaces of the flights, welds and pipe are then polished
to a specific grit finish to meet the requirements of the application. The exterior of a screw
conveyor may require special welding and polishing of the troughs, trough ends and
covers. No pits or crevices are allowed at welded joints because the bulk material could be
contaminated or cause corrosion.
The KWS screw conveyor surface finishes shown below address the needs of almost every
bulk material application. Surface finishes are called out for the interior and exterior of a
screw conveyor including the welds, flights, pipe, troughs, trough ends and covers.
The KWS screw conveyor surface finishes are much more comprehensive when compared
to the CEMA surface finishes. KWS addresses the surface finish requirements of the welds,
flights, pipe, troughs, trough ends and covers while CEMA only addresses the surface finish
of the welds on a screw conveyor. The CEMA surface finish call outs are incomplete and
can be confusing to the Customer, possibly creating a problem.
Our goal at KWS is to exceed the expectations of our Customers by providing screw
conveyors with the proper surface finish for the application and process.
14
Screw Conveyor Component Guide
Screw assembly:
KWS Industrial Finish 1S
Weld: Weld spatter and slag removed, 40 to 50 grit finish, pits and crevices permissible (CEMA II)
Flight Surface: Mill finish, no grinding or polishing on steel surfaces
Pipe: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 2S
Weld: Weld spatter and slag removed, 80 to 100 grit finish, pits and crevices permissible (CEMA III)
Flight Surface: Mill finish, no grinding or polishing on steel surfaces
Pipe: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 3S
Weld: Weld spatter and slag removed, welds as laid, no pits or crevices permissible (No CEMA
equivalent)
Flight Surface: Mill finish, no grinding or polishing on steel surfaces
Pipe: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 1SP
Weld, Flight Surface and Pipe: 150 grit finish on all surfaces, no pits or crevices permissible (No
CEMA Equivalent)
Trough assembly (Including Trough Ends and Covers)
KWS Industrial Finish 1T – Interior and/or Exterior
Weld: Weld spatter and slag removed, 40 to 50 grit finish, pits and crevices permissible (CEMA II)
Trough Surface: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 2T – Interior and/or Exterior
Weld: Weld spatter and slag removed, 80 to 100 grit finish, pits and crevices permissible (CEMA III)
Trough Surface: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 3T – Interior and/or Exterior
Weld: Weld spatter and slag removed, welds as laid, no pits or crevices permissible (No CEMA
equivalent)
Trough Surface: Mill finish, no grinding or polishing on steel surfaces
KWS Industrial Finish 1TP – Interior Only
Weld: 150 grit finish, no pits or crevices permissible (CEMA IV)
Trough Surface: Mill finish, no grinding or polishing on 2B surfaces, plate surfaces to be polished to
150 grit finish
sCReW COnveyOR sURfaCe finishes
15
Screw Conveyor Component Guide
KWS Industrial Finish 2TP – Interior Only
Weld and Trough Surface: 150 grit finish on all surfaces, no pits or crevices permissible (No CEMA
Equivalent)
Standard Exterior Paint Finish for Carbon Steel Components and Assemblies
(Up to 220-Degrees F)
Surface Preparation: Hand tool clean per SSPC-SP2
Paint: One shop coat of KWS gray enamel, 2 to 3 mils minimum DFT
Standard Exterior Paint Finish for Carbon Steel Components and Assemblies
(Between 220 and 600-Degrees F)
Surface Preparation: Near white blast per SSPC-SP10
Paint: One shop coat of KWS high temperature paint, 2 to 3 mils minimum DFT
sCReW COnveyOR sURfaCe finishes
16
Screw Conveyor Component Guide
KWs haRdsURfaCing fOR abRasive appliCaTiOns
KWS provides screw conveyors manufactured from
many commercially available abrasion-resistant
materials. Metals such as AR-235, AR-400 and AR-
500 plate are used in many abrasive applications.
Hardsurfacing, also known as hardfacing, is the
application of wear-resistant metals to the flight
surface by means of welding. KWS hardsurfaced
screws are designed to eliminate excessive wear on
flights while conveying abrasive bulk materials. A
hardsurface alloy is typically welded to the carrying
side of the flighting face. When handling extremely
abrasive bulk materials such as glass cullet or wood
bark, the non-carrying side and outside diameter of
the flight as well as the outer surface of the center
pipe can be hardsurfaced to prevent wear of the
softer base materials.
Hardsurfacing materials manufactured by Postle
Industries, Allied Welding and Stellite are commonly
used by KWS. Many other hardsurface alloys are
available. The chart provided shows the standard
width of hardsurfacing for a specific screw conveyor
diameter. Please consult KWS Engineering or your
KWS Salesperson to determine the best solution for
your application.
Additional consideration must be given to selecting
the proper coupling shafts and hanger bearings
for an abrasive application. Hard iron bearings and
hardened coupling shafts are sufficient for most
moderately abrasive applications such as handling
crushed limestone or Portland cement. For severely
abrasive applications such as handling alumina or
flyash, Stellite sleeved bearings and couplings shafts
are typically required.
Screw Dia .
Width of Application
4” 3/4”
6” 1”
9” 1-1/2”
12” 2”
14” 2”
16” 2-1/2”
18” 2-1/2”
20” 3”
24” 3”
30” 4”
36” 4”
SCREWDIA.
WIDTH OFAPPLICATION
17
Screw Conveyor Component Guide
inTeRnal COllaRs
Internal collars, sometimes
referred to as bushings, are used
to reduce the inside diameter
of the center pipe of a screw to
match standard CEMA shaft sizes
and to increase the torque rating
of the CEMA bolted connection.
For standard pipe sizes, internal
collars are manufactured from
special seamless tubing and
match fit to the bore of the
pipe of a screw. Internal collars
are plug welded in place for a
permanent connection. For larger
than standard pipe sizes KWS
creates a shrink fit connection
between the internal collar and
pipe. Then, the internal collars
are plug welded in place for a
permanent connection.
I C K S S E i i G i \ ARD PY\ V NT FI \B HING \BU HI G A L
UL RE E E R V P R R R R P P
A
B C B
D
B
A
C C B
D
Part Number
A B C D Weight (Lbs .)
Bore Dimension Spacing 1st Bolt
Bolt Centers
Nominal Bolt Size
2 Bolt 3 BoltMin . Max .
IC111440* 1 .005” 1 .016” 1/2” 2” 3/8” 3 4IC112240* 1 .505” 1 .516” 7/8” 3” 1/2” 3 4IC221240* 2 .005” 2 .016” 7/8” 3” 5/8” 3 4IC2716340* 2 .443” 2 .458” 15/16” 3” 5/8” 4 7IC331240* 3 .005” 3 .025” 1” 3” 3/4” 4 7IC3440* 3 .005” 3 .025” 1” 3” 3/4” 4 7IC3716440* 3 .443” 3 .467” 1-1/2” 4” 7/8” 8 12IC31516540 3 .943” 3 .967” 1-11/16” 4” 1-1/8” 17 27IC4716640 4 .443” 4 .467” 1-7/8” 4” 1-1/4” 35 50
* KWS Stock Component in 2-bolt only
I C 2 7 1 6 3 4 0 3 B
Pipe Schedule
4080
IC = Internal Collar
Pipe Size114 = 1-1/4” 312 = 3-1/2”2 = 2” 4 = 4”212 = 2-1/2” 5 = 5”3 = 3” 6 = 6”
NOMENClaTUrE
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
DrillingBlank = 2 Bolt
3B = 3 Bolt
18
Screw Conveyor Component Guide
end lUgs
End lugs are used to provide extra support to the first and
last flight of a screw section and are located on the non-
carrying side of the flight. End lugs are manufactured from
heavy-gauge steel and continuously welded to the flight
and center pipe of a screw section. End lugs are designed
to provide maximum support with the least obstruction of
material flow.
Screw Dia . Part Number
6” to 9” 12” to 16”
EL9* EL12*
* KWS Stock Component
COUpling bOlTs
Coupling bolts are manufactured from various high-strength
carbon steels and 18-8 stainless steels. KWS stocks Grade
5 carbon steel and 18-8 stainless steel coupling bolts. The
shank length of a coupling bolt is equal to the measured
outside diameter of the center pipe of the screw to provide
maximum shear area and strength. It is very important to
only use the correct coupling bolt for corresponding screw
and pipe size.
Cplg . Dia .
Outside Pipe Dia
Pipe Size
(Sch 40)
Bolt Size Part Number
Wt . Each (Lbs .)
1” 1-1/2”
2” 2-7/16”
3” 3”
3-7/16” 3-15/16” 4-7/16”
1-11/16” 2-3/8” 2-7/8” 3-1/2”
4” 4-1/2” 4-1/2”
5-9/16” 6-5/8”
1-1/4” 2”
2-1/2” 3”
3-1/2” 4” 4” 5” 6”
3/8” x 2-1/16” 1/2” x 3”
5/8” x 3-5/8” 5/8” x 4-3/8”
3/4” x 5” 3/4” x 5-1/2” 7/8” x 5-1/2”
1-1/8” x 7-1/16” 1-1/4” x 7-1/2”
CB1114* CB1122* CB2212* CB27163* CB3312* CB34*
CB37164* CB315165 CB47166
0 .13 0 .32 0 .56 0 .63 0 .91 1 .05 1 .59 3 .14 4 .62
* KWS Stock Component
E L 9
EL = End Lug
NOMENClaTUrE
C B 1 1 2 2
CB = Coupling Bolt
NOMENClaTUrE
Screw Diameter9 = 9” 12 = 12”
Pipe Size114 = 1-1/4” 312 = 3-1/2”2 = 2” 4 = 4”212 = 2-1/2” 5 = 5”3 = 3” 6 = 6”
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
19
Screw Conveyor Component Guide
hangeRs
Hangers are intermediate support brackets located between screw sections along the length of a screw
conveyor. Hangers allow for the use of multiple screw sections. Many different hanger styles are available,
depending on the application. Style 216 and 226 hangers are the most widely used and are in stock at
KWS. Hangers are generally used when conveying non-abrasive and free-flowing bulk materials. The
bulk material must be able to flow around the hanger. Hangers are not recommended when conveying
abrasive and sluggish bulk materials.
Style 216
Style 216 hangers are an inside flush mounted hanger.
The double body bar provides extra rigidity for heavier
screw sections in more demanding applications. The flush
mounted top bar bolts to the inside of the trough flanges
and allows for the use of standard trough covers.
Style 220
Style 220 hangers are a top mounted hanger. The
combination body bar provides rigidity for light and
medium duty applications while allowing minimal
obstruction of material flow. The top mounted top bar
bolts to the top of the trough flanges and requires the use
of special covers.
Style 226
Style 226 hangers are an inside flush mounted hanger.
The combination body bar provides rigidity for light
and medium duty applications while allowing minimal
obstruction of material flow. The flush mounted top bar
bolts to the inside of the trough flanges and allows for the
use of standard trough covers.
H G R 1 2 2 2 6 2 7 1 6
HGR = HangerTrough Type
Blank = U-TroughF = Flared Trough
Blank = Standard GP = Drilled for use with grease pipe
NOMENClaTUrE
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
Style216 316220 326226 660230 670
20
Screw Conveyor Component Guide
hangeRs
Style 230
Style 230 hangers are a top mounted hanger. The double body bar
provides extra rigidity for heavier screw sections in more demanding
applications. The top mounted top bar bolts to the top of the trough
flanges and requires the use of special covers.
Style 316
Style 316 hangers are an inside flush mounted hanger. The top
bar is self-adjusting to compensate for thermal expansion in high
temperature applications. The double body bar provides extra rigidity
for heavier screw sections in more demanding applications. The flush
mounted top bar bolts to the inside of the trough flanges and allows
for the use of standard trough covers.
Style 326
Style 326 hangers are an inside flush mounted hanger. The top
bar is self-adjusting to compensate for thermal expansion in high
temperature applications. The combination body bar provides
rigidity for light and medium duty applications while allowing minimal
obstruction of material flow. The flush mounted top bar bolts to the
inside of the trough flanges and allows for the use of standard trough
covers.
Style 660
Style 660 hangers are a top mounted hanger. Supplied with a dust-
tight sealed ball bearing, style 660 hangers allow for 4-degrees of
shaft misalignment and temperatures up to 240-degrees F. The pipe
body bar provides rigidity for light and medium duty applications
while allowing minimal obstruction of material flow. The top mounted
top bar bolts to the top of the trough flanges and requires the use of
special covers.
Style 670
Style 670 hangers are an inside flush mounted hanger. Supplied
with a dust-tight sealed ball bearing, style 670 hangers allow
for 4-degrees of shaft misalignment and temperatures up to
240-degrees F. The pipe body bar provides rigidity for light and
medium duty applications while allowing minimal obstruction of
material flow. The flush mounted top bar bolts to the inside of the
trough flanges and allows for the use of standard trough covers.
21
Screw Conveyor Component Guide
U-TROUgh hangeRs
Style 216 for
U - Trough
Style 226 for
U - Trough
Style 670 for
U - Trough
Screw Dia .
Shaft Dia .
A B C D E F G
Bolts H Part Number
Weight (Lbs .)
216 226 670
4” 1” 5” 3-5/8” 1-1/2 2” 4” 5/8” 1/4” 3/16” HGR4#1*†• 3 5 5
6” 1-1/2” 7” 4-1/2” 2” 2-1/2” 4” 3/4” 3/8” 1/4” HGR6#112*@ 5 7 7
9” 1-1/2” 2” 10” 6-1/8” 2”
2” 2-1/2” 4” 1” 3/8” 1/4” HGR9#112*@ HGR9#2*@
7 9
9 11
8 9
12”2”
2-7/16” 3”
13” 7-3/4”2” 3” 3”
2-1/2” 5” 1-1/4” 1/2” 3/8”HGR12#2*@
HGR12#2716*@ HGR12#3*@
14 18 21
16 21 28
12 20 30
14” 2-7/16” 3” 15” 9-1/4” 3”
3” 2-1/2” 5” 1-3/8” 1/2” 3/8” HGR14#2716*@ HGR14#3*@
23 25
22 26
21 32
16” 3” 17” 10-5/8” 3” 2-1/2” 5” 1-3/8” 1/2” 3/8” HGR16#3*@ 28 39 35
18” 3” 3-7/16” 19” 12-1/8” 3”
4” 3-1/2” 5” 1-5/8” 5/8” 1/2” HGR18#3*@ HGR18#3716*@
34 44
41 49
40 46
20” 3” 3-7/16” 21” 13-1/2” 3”
4” 3-1/2” 5” 1-5/8” 5/8” 1/2” HGR20#3*@HGR20#3716*@
36 47
43 51
45 52
24” 3-7/16” 25” 16-1/2” 4” 3-1/2” 5” 1-3/4” 5/8” 1/2” HGR24#3716*@ 53 67 63
30” 3-15/16” 31” 19-1/2” 4” 3-1/2” 5-1/2” 1-3/4” 3/4” 1/2” HGR30#31516•@ 68 79 68
36” 4-7/16” 37” 22-1/2” 5” 3-1/2” 5-1/2” 1-3/4” 3/4” 1/2” HGR36#4716•@ 83 88 83
* KWS Stock Component only for 216 and 226 standard style hangers # = 216, 226, or 670 † Not Available for Style 216 • Not Available for Style 670 @ = Blank=Standard, GP=Drilled for grease pipe
22
Screw Conveyor Component Guide
U-TROUgh hangeRs
Style 220 for
U - Trough
Style 230 for
U - Trough
Style 660 for
U - Trough
Screw Dia .
Shaft Dia . A B C D E F G
Bolts H Part Number
Weight (Lbs .)
220 230 660
4” 1” 6-1/4” 3-5/8” 1-1/2” 7-1/4” 2” 4” 1/4” 1/4” HGR4#1†• 5 5 5
6” 1-1/2” 8-3/4” 4-1/2” 2” 9-3/4” 2-1/2” 4” 3/8” 1/4” HGR6#112@ 7 7 7
9” 1-1/2” 2” 12-1/4” 6-1/8” 2”
2” 13-1/2” 2-1/2” 4” 3/8” 1/4” HGR9#112@ HGR9#2@
9 11
9 11
8 9
12”2”
2-7/16” 3”
15-3/4” 7-3/4”2” 3” 3”
17-1/2” 2-1/2” 5” 1/2” 3/8”HGR12#2@
HGR12#2716@ HGR12#3@
16 21 28
16 21 28
12 20 30
14” 2-7/16” 3” 17-3/4” 9-1/4” 3”
3” 19-1/2” 2-1/2” 5” 1/2” 3/8” HGR14#2716@ HGR14#3@
26 33
26 33
21 32
16” 3” 19-3/4” 10-5/8” 3” 21-1/2” 2-1/2” 5” 1/2” 3/8” HGR16#3@ 39 39 35
18” 3” 3-7/16” 22-1/4” 12-1/8” 3”
4” 24-1/2” 3-1/2” 5” 5/8” 1/2” HGR18#3@ HGR18#3716@
41 49
41 49
40 46
20” 3” 3-7/16” 24-1/2” 13-1/2” 3”
4” 26-1/2” 3-1/2” 5” 5/8” 1/2” HGR20#3@ HGR20#3716@
43 51
43 51
45 58
24” 3-7/16” 28-1/4” 16-1/2” 4” 30-1/2” 3-1/2” 5” 5/8” 1/2” HGR24#3716@ 67 67 69
30” 3-15/16” 36-1/4” 19-1/2” 4” 38-1/2” 3-1/2” 5-1/2” 3/4” 1/2” HGR30#31516•@ 73 73 75
36” 4-7/16” 42-1/4” 22-1/2” 5” 44-1/2” 3-1/2” 5-1/2” 3/4” 1/2” HGR36#4716•@ 88 88 91
# = 220, 230, or 660 † Not Available for Style 230 • Not Available for Style 660 @ = Blank=Standard, GP=Drilled for grease pipe
V
A P R P R
RE
S
_ _ n
2
H
B
D F
C
A
G
D
B
H
C
FA
G
E
__
B
H
DA
G
C
FE
23
Screw Conveyor Component Guide
U-TROUgh hangeRs
Style 316 for
U - Trough
Style 326 for
U - Trough
Screw Dia .
Shaft Dia . A B C D E F G
Bolts H Part Number
Weight (Lbs .)
220 230
4” 1” 5” 3-5/8” 1-1/2” 2” 5” 5/8” 1/4” 1/8” HGR4#1†@ 5 5
6” 1-1/2” 7” 4-1/2” 2” 2-1/2” 6” 3/4” 3/8” 1/8” HGR6#112@ 6 6
9” 1-1/2” 2” 10” 6-1/8” 2”
2” 2-1/2” 6” 1” 3/8” 3/16” HGR9#112@ HGR9#2@
8 10
8 10
12”2”
2-7/16” 3”
13” 7-3/4”2” 3” 3”
2-1/2” 6-1/2” 1-1/4” 1/2” 3/16”HGR12#2@
HGR12#2716@ HGR12#3@
15 20 25
15 20 25
14” 2-7/16” 3” 15” 9-1/4” 3”
3” 2-1/2” 6-1/2” 1-3/8” 1/2” 1/4” HGR14#2716@ HGR14#3@
24 31
24 29
16” 3” 17” 10-5/8” 3” 2-1/2” 6-1/2” 1-3/8” 1/2” 1/4” HGR16#3@ 36 35
18” 3” 3-7/16” 19” 12-1/8” 3”
4” 3-1/2” 6-1/2” 7” 1-5/8” 5/8” 1/4” HGR18#3@
HGR18#3716@36 48
34 47
20” 3” 3-7/16” 21” 13-1/2” 3”
4” 3-1/2” 6-1/2” 7” 1-5/8” 5/8” 1/4” HGR20#3@
HGR20#3716@40 51
40 51
24” 3-7/16” 25” 16-1/2” 4” 3-1/2” 7” 1-3/4” 5/8” 5/16” HGR24#3716@ 58 58
30” 3-15/16” 31” 19-1/2” 4” 3-1/2” 8” 1-3/4” 3/4” 3/8” HGR30#31516@ 63 64
36” 4-7/16” 37” 22-1/2” 5” 3-1/2” 8” 1-3/4” 3/4” 3/8” HGR36#4716@ 80 82
# = 316 or 326 † Not Available for Style 316 @ = Blank=Standard, GP=Drilled for grease pipe
P H
W P P H N B N
B N U
H R N
A
HB
C
G
DE
F
R N W P R
R B R N R B R P P
H N R U
H B N R B R N
RM R U W W B R B N N
H V
HP V R M
P R P N M H W B R R W N M N H N R V
H PM V N M
A
HB
F
G
DE
C
24
Screw Conveyor Component Guide
flaRed TROUgh hangeRs
Style 216 for
flared Trough
Style 226 for
flared Trough
Style 670 for
flared Trough
AH
B
C
G
DE
F
AH
B
ED
G
C
F
Screw Dia .
Shaft Dia . A B C D E F G
Bolts H Part Number
Weight (Lbs .)
220 230 660
4” NOT AVAILABLE
6” 1-1/2” 14” 7” 2” 2-1/2” 4” 3/4” 3/8” 1/4” HGR6#F112@ 7 8 8
9” 1-1/2” 2” 18” 9” 2”
2” 2-1/2” 4” 1” 3/8” 1/4” HGR9#F112@ HGR9#F2@
8 10
10 13
9 11
12”2”
2-7/16” 3”
22” 10”2” 3” 3”
2-1/2” 5” 1-1/4” 1/2” 3/8”HGR12#F2@
HGR12#F2716@ HGR12#F3@
15 20 24
18 23 32
14 23 35
14” 2-7/16” 3” 24” 11” 3”
3” 2-1/2” 5” 1-3/8” 1/2” 1/4 HGR14#F2716†@ HGR14#F3†@
25 28
29 27
24 37
16” 3” 28” 11-1/2” 3” 2-1/2” 5” 1-3/8” 1/2” 1/4 HGR16#F3†@ 31 43 49
18” 3” 3-7/16” 31” 12-1/8” 3”
4” 3-1/2” 6” 1-5/8” 5/8” 3/8” HGR18#F3†@ HGR18#F3716†@
37 50
45 55
45 52
20” 3” 3-7/16” 34” 13-1/2” 3”
4” 3-1/2” 6” 1-5/8” 5/8” 3/8” HGR20#F3†@ HGR20#F3716†@
39 53
47 57
50 58
24” 3-7/16” 40” 16-1/2” 4” 3-1/2” 6” 1-5/8” 5/8” 3/8” HGR24#F3716†@ 59 73 69
30” 3-15/16” 47-3/8” 19-1/2” 4” 3-1/2” 7” 1-5/8” 3/4” 1/2” HGR30#F31516•† @ 78 95 78
36” 4-7/16” 54-3/8” 22-1/2” 5” 3-1/2” 7” 1-5/8” 3/4” 1/2” HGR36#F4716•† @ 95 117 95
# = 216, 226, or 670 † Requires Top Bar To Be Constructed From Channel • Not Available For Style 670 @ = Blank=Standard, GP=Drilled for grease pipe
B
AH
C
DE
G
F
25
Screw Conveyor Component Guide
hangeR beaRings
Hanger bearings provide a bearing surface to support a screw section when multiple screw sections
are used in a screw conveyor. Hanger bearings are journal or plain type bearings that mount in
hangers and are replaceable when worn. Many different hanger bearing materials are available,
depending on the application. Style 216 and 226 bearings are the most widely used and are in stock
at KWS.
KWS hanger bearing recommendations are listed in the Component Series Table of the KWS Screw
Conveyor Engineering Guide for the specific bulk material to be conveyed. The most common
hanger bearing materials are described in the table below. Please consult KWS Engineering for
specific hanger bearing recommendations.
Bearing Material
RPM Max
Temp Max (°F)
Wear Resist*
Industry Uses Comments
Nylatron (NR) 60 180 3 Chemical handling, grain,
feed Self lubricating, very low load capacity
UHMW 60 160 6 Food, Ice USDA approved, doesn’t swell in water
Gatke (G) 75 250 7 Medium temp applications (alternate for Hard Iron) Low load capacity, Food Grade
Hard Iron (H) 75 400 9 Lime, Cement, Salt, Gypsum Requires hardened shaft, can be noisy, lube
req’d in some applications
Wood (W) 175 160 4 Grain, Feed, Fertilizer Self lubricating, good general purpose
Plastech (P) 100 160 6 Grain, Food Food grade
Bronze (BR) 150 850 7 Grain, Feed, Processing Self lubricating, high quality bearings, high
load capacity
Ball Bearing
(BB)400 180 1** High speed, low loading Screw action tends to force product thru
seals reducing bearing life
Stellite (S) 50 1000 10 Very high temp applications, metal processing, ceramics Requires stellite insert in shaft
* 0 = Least, 10 = Highest ** Depending on bearing type and seal arrangement
H G B 2 2 6 3 7 1 6 WHGB = Hanger Bearing
Bearing MaterialNR = Nylatron UHMW = UHMW
GP = Hard Iron Drilled for Grease Pipe
G = Gatke W = WoodH = Hard Iron P = Plastech
BR = Bronze
NOMENClaTUrE
Style216226B
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
26
Screw Conveyor Component Guide
hangeR beaRings
Style 216
Style 216 hanger bearings are used in 216, 316, and 230 hangers, and
are manufactured to CEMA dimensional standards. Style 216 hangers
and hanger bearings offer superior rigidity and are excellent for extra
heavy-duty applications.
Style 226
Style 226 hanger bearings are used in 226, 326, and 220 hangers, and
are manufactured to CEMA dimensional standards. Style 226 hangers
and hanger bearings have clearance for bulk materials to pass and are
excellent for normal and heavy-duty applications.
Style B
Style B hanger bearings are used in 660 and 670 hangers, and are
manufactured to CEMA dimensional standards. Style B hanger bearings
utilize a self-aligning ball bearing for lower power consumption and
quieter operation. The bearing is sealed to minimize contamination.
sTyle 216 hangeR beaRing
BA
SHAFT DIA.
C
E
D
Shaft Dia .
A B C D E
(Dia .)Part Number
Weight (Lbs.) •
1” NOT AVAILABLE
1-1/2” 1-15/16” 1-9/16” 2-3/4” 1-3/8” 2-1/4” HGB216112#* 2 .0
2” 1-15/16” 1-9/16” 3-3/4” 1-5/8” 3-1/4” HGB2162#* 4 .0
2-7/16” 2-15/16” 2-1/4” 4-1/2” 2” 4” HGB2162716#* 9 .2
3” 2-15/16” 2-1/4” 5” 2-5/16” 4-1/2” HGB2163#* 10 .8
3-7/16” 3-15/16” 3-1/4” 5-1/2” 2-7/16” 4-7/8” HGB2163716#* 15 .2
3-15/16” 3-15/16” 3-1/4” 6” 2-11/16” 5-3/8” HGB21631516#* 17 .3
4-7/16” 4-15/16” 4-1/4” 7-3/16” 3-1/4” 6-3/16” HGB2164716#* 31 .7
* KWS Stock Component • All weights are based on hard iron. # Bearing Material (UHMW, Gatke, Hard Iron, Wood, Bronze, Stellite) Note: Only Hard Iron and Bronze are available in 3-15/15” and 4-7/16”.
27
Screw Conveyor Component Guide
sTyle 226 hangeR beaRing
Shaft Dia . A B C D E (Dia .) Part Number Weight (Lbs.) •
1” 1-7/16” 1-1/8” 5/16” 1/2” 1-3/16” HGB2261#* 21-1/2” 1-15/16” 1-9/16” 1/2” 9/16” 2-3/16” HGB226112#* 2
2” 1-15/16” 1-9/16” 1/2” 9/16” 2-13/16” HGB2262#* 42-7/16” 2-15/16” 2-1/4” 3/4” 3/4” 3-3/16” HGB2262716#* 9
3” 2-15/16” 2-1/4” 3/4” 3/4” 4-1/16” HGB2263#* 113-7/16” 3-15/16” 3-1/4” 1-1/4” 3/4” 4-3/4” HGB2263716#* 153-15/16” 3-15/16” 3-1/4” 1-1/4” 3/4” 5-1/4” HGB22631516# 174-7/16” 4-15/16” 4-1/4” 1-3/4” 3/4” 5-13/16” HGB2264716# 32
• All weights are based on hard iron. # Bearing Material (Nylatron, UHMW, Gatke, Hard Iron, Wood, Plastech, Bronze, Stellite) * KWS Stock Component Note: Only UHMW and Wood are available in the 1” size.
R C T O N T
\ H G
H
R
AB
E
SHAFT DIA.
C D C
sTyle b hangeR beaRing
B
A
SHAFT DIA.
C
STRAIGHT THREADPIPE
Shaft
Dia. A B C
Straight
Thread
Pipe
D
Part
Number Weight
1” 1-1/2” 2-1/2” 3-1/8” 3/4” HGBB1 31-1/2” 1-15/16” 2-7/8” 4” 3/4” HGBB112 3
2” 1-15/16” 3-1/4” 4-5/8” 3/4” HGBB2 42-7/16” 2-5/16” 4” 5-1/2” 1” HGBB2716 7
3” 2-3/8” 4-7/8” 7” 1” HGBB3 153-7/16” 2-9/16” 6” 8-3/8” 1-1/2” HGBB3716 21
28
Screw Conveyor Component Guide
TROUgh ends
Trough ends are manufactured from heavy gauge steel to very close tolerances. Assembly and
mounting holes are precision cut to ensure correct alignment with trough end flanges.
KWS stocks a large inventory of trough ends in both carbon and stainless steel construction that are
ready for immediate shipment. Stock trough ends are available with hole patterns for 4-bolt flange
mounted ball and roller bearings.
T E W O 9 2 U B BTE = Trough End
W = Without FootF = With FootP = Pedestal FE = Flush End BH = Bulkhead TA = Torque Arm
BB = Drilled for Ball BearingBBRB* = Slotted for Ball and Roller BearingRB = Drilled for Roller BearingO = Outside Pattern
Omit for Bulkhead
U = U-Trough F = Flared TroughR = Rectangular Trough T = Tubular Trough
Note: Torque Arm Trough Ends include Drive Size before bearing call-out. (i.e: TETAO92U-SK3-RB)
NOMENClaTUrE
WIThOUT fOOT
Trough ends without feet are typically used in applications
where a screw conveyor is suspended above ground and is
supported from the top flange.
WITh fOOT
Trough ends with feet are the most commonly used type of
trough end, and are typically used in applications where a
screw conveyor is mounted directly to the floor or on structural
supports.
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
* Stock trough ends are BBRB, except 2” dia.
29
Screw Conveyor Component Guide
TROUgh ends
PEDESTal
Pedestal trough ends are typically used in heavy and extra-
heavy duty applications where a split gland, flanged gland
or mechanical seal is required. Pedestal trough ends require
the use of a pillow block bearing. The space between the
trough end and pillow block bearing prevents contamination
of the bearing.
flUSh END
Flush End trough ends are used with flush end discharge
spouts where overall length needs to be minimized and
conveyance length needs to be maximized. The bottom
flange of the flush end trough end is drilled to match the
discharge flange pattern.
BUlKhEaD
Bulkhead trough ends are used with flange mounted gear
reducers on the drive end of a screw conveyor and are
typically used in heavy and extra-heavy duty applications
where a split gland, flanged gland or mechanical seal is
required. The space between the trough end and bulkhead
prevents contamination of the gear reducer. A bulkhead
drive shaft is required.
TOrqUE arM
Torque arm trough ends are used with pillow block
bearings and shaft-mounted gear reducers on the drive end
of a screw conveyor and are typically used in heavy and
extra-heavy duty applications where a split gland, flanged
gland or mechanical seal is required. The space between the
trough end and pillow block bearing prevents contamination
of the bearing and gear reducer. The special torque arm
design allows the gear reducer to float freely on the drive
shaft. A torque arm drive shaft is required.
30
Screw Conveyor Component Guide
TROUgh ends WiThOUT feeT
F C
ED
G
A
B
C
DE
flarED WIThOUT fOOTU-TrOUGh WIThOUT fOOT
Screw Dia .
Shaft Dia .
A B CD
BoltsE F G Part Numbers
Weight (Lbs .)
U-Trough Flared
4” 1” 7-3/4” 3-5/8” 1-7/16” 3/8” 3/16” X X TEWO41# 5 N/A6” 1-1/2” 9-3/4” 4-1/2” 1-1/2” 3/8” 3/16” 16-5/8” 7” TEWO6112# 10 13
9” 1-1/2” 2” 13-3/4” 6-1/8” 1-5/8” 3/8” 1/4” 21-1/4” 9” TEWO9112#
TEWO92#18 18
19 24
12”2”
2-7/16” 3”
17-1/4” 7-3/4” 2” 1/2” 1/4” 26-3/8” 10”TEWO122#
TEWO122716# TEWO123#
43 43 43
36 37 49
14” 2-7/16” 3” 19-1/4” 9-1/4” 2” 1/2” 1/4” 28-3/8” 11” TEWO142716#
TEWO143#48 48
43 55
16” 3” 21-1/4” 10-5/8” 2-1/2” 5/8” 3/8” 32-1/2” 11-1/2” TEWO163# 62 72
18” 3” 3-7/16” 24-1/4” 12-1/8” 2-1/2” 5/8” 3/8” 36-1/2” 12-1/8” TEWO183#
TEWO183716#84 84
83 89
20” 3” 3-7/16” 26-1/4” 13-1/2” 2-1/2” 5/8” 3/8” 39-1/2” 13-1/2” TEWO203#
TEWO203716#102 102
103 109
24” 3-7/16” 30-1/4” 16-1/2” 2-1/2” 5/8” 3/8” 45-1/2” 16-1/2” TEWO243716# 128 13230” 3-15/16” 38” 19-1/2” 3”• 5/8” 1/2”• 47-3/8” 19-1/2” TEWO3031516#• 250 26736” 4-7/16” 44” 22-1/2” 3”• 5/8” 1/2”• 54-3/8” 22-1/2” TEWO364716#• 340 350
# = Trough and Bearing type; U=U-Trough, F=Flared, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • Top Flange Must Be Welded On and Not Formed
31
Screw Conveyor Component Guide
A
A2
D
E
TROUgh ends WiThOUT feeT
rECTaNGUlar WIThOUT fOOTTUBUlar WIThOUT fOOT
Screw Dia .
Shaft Dia .
A B CD
BoltsE Part Numbers
Weight (Lbs .)
Tubular Rectangular
4” 1” 7-3/4” 3-5/8” 1-7/16” 3/8” 3/16” TEWO41# 4 N/A6” 1-1/2” 9-3/4” 4-1/2” 1-1/2” 3/8” 3/16” TEWO6112# 9 11
9” 1-1/2” 2” 13-3/4” 6-1/8” 1-5/8” 3/8” 1/4” TEWO9112#
TEWO92#12 15
16 21
12”2”
2-7/16” 3”
17-1/4” 7-3/4” 2” 1/2” 1/4”TEWO122#
TEWO122716# TEWO123#
29 24 36
32 33 51
14” 2-7/16” 3” 19-1/4” 9-1/4” 2” 1/2” 1/4” TEWO142716#
TEWO143#30 42
39 57
16” 3” 21-1/4” 10-5/8” 2-1/2” 5/8” 3/8” TEWO163# 52 72
18” 3” 3-7/16” 24-1/4” 12-1/8” 2-1/2” 5/8” 3/8” TEWO183#
TEWO183716#63 74
79 86
20” 3” 3-7/16” 26-1/4” 13-1/2” 2-1/2” 5/8” 3/8” TEWO203#
TEWO203716#85 97
104 110
24” 3-7/16” 30-1/4” 16-1/2” 2-1/2” 5/8” 3/8” TEWO243716# 116 13830” 3-15/16” 38” 19-1/2” 3” • 5/8” 1/2”• TEWO3031516#• 131 18236” 4-7/16” 44” 22-1/2” 3” • 5/8” 1/2”• TEWO364716#• 237 301
# = Trough and Bearing type; T=Tubular, R=Rectangular, BB=Ball Bearing, BBRB=Slotted for Ball and Roller Bearing, RB=Roller Bearing • Top Flange Must Be Welded On and Not Formed
32
Screw Conveyor Component Guide
TROUgh ends WiTh feeT
flarED WITh fOOTU-TrOUGh WITh fOOT
C
I
HF
J
G
KE
D
L
Screw Dia .
Shaft Dia .
A B C D E FG
BoltsH I J
K Bolts
L Part Numbers
Weight (Lbs .)
U- Trough
Flared Trough
4” 1” 7-3/4” 3-5/8” 1-7/16” 4-5/8” 5-3/4” 1” 3/8” 1-5/8” 3/16” X 3/8” X TEFO41#* 7 N/A6” 1-1/2” 9-3/4” 4-1/2” 1-1/2” 5-5/8” 8-1/8” 1” 3/8” 1-3/4” 3/16” 16-5/8” 3/8” 7” TEFO6112#* 12 15
9” 1-1/2” 2” 13-3/4” 6-1/8” 1-5/8” 7-7/8” 9-3/8” 1-1/2” 3/8” 2-5/8” 1/4” 21-1/4” 1/2” 9” TEFO9112#*
TEFO92#*18 22
22 27
12”2”
2-7/16” 3”
17-1/4” 7-3/4” 2” 9-5/8” 12-1/4” 1-5/8” 1/2” 2-3/4” 1/4” 26-3/8” 5/8” 10”TEFO122#*
TEFO122716#* TEFO123#*
36 38 50
43 44 56
14” 2-7/16” 3” 19-1/4” 9-1/4” 2” 10-7/8” 13-1/2” 1-5/8” 1/2” 2-7/8” 1/4” 28-3/8” 5/8” 11” TEFO142716#*
TEFO143#*45 57
52 64
16” 3” 21-1/4” 10-5/8” 2-1/2” 12” 14-7/8” 2” 5/8” 3-1/4” 3/8” 32-1/2” 5/8” 11-1/2” TEFO163#* 75 85
18” 3” 3-7/16” 24-1/4” 12-1/8” 2-1/2” 13-3/8” 16” 2” 5/8” 3-1/4” 3/8” 36-1/2” 5/8” 12-1/8” TEFO183#*
TEFO183716#*89
10198 104
20” 3” 3-7/16” 26-1/4” 13-1/2” 2-1/2” 15” 19-1/4” 2-1/4” 5/8” 3-3/4” 3/8” 39-1/2” 3/4” 13-1/2” TEFO203#*
TEFO203716#*142 153
153 169
24” 3-7/16” 30-1/4” 16-1/2” 2-1/2” 18-1/8” 20” 2-1/2” 5/8” 4-1/8” 3/8” 45-1/2” 3/4” 16-1/2” TEFO243716#* 197 21330” 3-15/16” 38” 19-1/2” 3”• 21-1/2” 30” 2-1/2” 5/8” 4-1/2”• 1/2”• 47-3/8” 3/4” 19-1/2” TEFO3031516#• 215 23036” 4-7/16” 44” 22-1/2” 3”• 24” 36” 2-1/2” 5/8” 4-1/2”• 1/2”• 54-3/8” 3/4” 22-1/2” TEFO364716#• 330 360
*KWS Stock Component (U-Trough only. Stock trough ends are BBRB, except 2” dia. which are drilled for Ball Bearing only) # = Trough and Bearing type; U=U-Trough, F=Flared, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • Flanges Must Be Welded On and Not Formed
33
Screw Conveyor Component Guide
TROUgh ends WiTh feeT
rECTaNGUlar WITh fOOTTUBUlar WITh fOOT
F
A
B
D
G
E H
I
C
Screw Dia .
Shaft Dia .
A B C D E FG
BoltsH I
J Bolts
Part Numbers Weight (Lbs .)
Tubular Rectangular4” 1” 7-3/4” X X 4-5/8” 5-3/4” 1” 3/8” 1-5/8” 3/16” 3/8” TEFO41# 6 N/A6” 1-1/2” 9-3/4” 4-1/2” 1-1/2” 5-5/8” 8-1/8” 1” 3/8” 1-3/4” 3/16” 3/8” TEFO6112# 11 13
9” 1-1/2” 2” 13-3/4” 6-1/8” 1-5/8” 7-7/8” 9-3/8” 1-1/2” 3/8” 2-5/8” 1/4” 1/2” TEFO9112#
TEFO92#15 18
19 24
12”2”
2-7/16” 3”
17-1/4” 7-3/4” 2” 9-5/8” 12-1/4” 1-5/8” 1/2” 2-3/4” 1/4” 5/8”TEFO122#
TEFO122716# TEFO123#
29 31 43
39 40 58
14” 2-7/16” 3” 19-1/4” 9-1/4” 2” 10-7/8” 13-1/2” 1-5/8” 1/2” 2-7/8” 1/4” 5/8” TEFO142716#
TEFO143#39 51
48 66
16” 3” 21-1/4” 10-5/8” 2-1/2” 12” 14-7/8” 2” 5/8” 3-1/4” 3/8” 5/8” TEFO163# 65 85
18” 3” 3-7/16” 24-1/4” 12-1/8” 2-1/2” 13-3/8” 16” 2” 5/8” 3-1/4” 3/8” 5/8” TEFO183#
TEFO183716#78 89
94 101
20” 3” 3-7/16” 26-1/4” 13-1/2” 2-1/2” 15” 19-1/4” 2-1/4” 5/8” 3-3/4” 3/8” 3/4” TEFO203#
TEFO203716#115 127
134 140
24” 3-7/16” 30-1/4” 16-1/2” 2-1/2” 18-1/8” 20” 2-1/2” 5/8” 4-1/8” 3/8” 3/4” TEFO243716# 157 17930” 3-15/16” 38” 19-1/2” 3”• 21-1/2” 30” 2-1/2” 5/8” 4-1/2”• 1/2”• 3/4” TEFO3031516#• 250 27036” 4-7/16” 44” 22-1/2” 3”• 24” 36” 2-1/2” 5/8” 4-1/2”• 1/2”• 3/4” TEFO364716#• 320 340
# = Trough and Bearing type; T=Tubular, R=Rectangular, BB=Ball Bearing, BBRB=Slotted for Ball and Roller Bearing, RB=Roller Bearing • Flanges Must Be Welded On and Not Formed
D O
F
A
A2
D
EJ
I
H
G
34
Screw Conveyor Component Guide
pedesTal TROUgh ends
flarEDU-TrOUGh rECTaNGUlarTUBUlar
A
SEE TEFO DIM STANDARDSFOR THE REST OF DIMENSIONS
Note: Dimension shown is the same for each style trough .
Screw Dia .
Shaft Dia . A Part Numbers Weight (Lbs .)
U-Trough Flared Tubular Rectangular
4” 1” 10” TEPO41# 14 15 13 14
6” 1-1/2” 10-3/4” TEPO6112# 19 22 18 20
9” 1-1/2” 2”
10-3/4” 11-1/4”
TEPO9112# TEPO92#
27 30
31 36
24 27
28 33
12” 2” 2-7/16”
3”
11-1/4” 13”
12-3/4”
TEPO122# TEPO122716#
TEPO123#
56 58 70
63 64 76
49 51 63
59 60 78
14” 2-7/16” 3”
13” 12-3/4”
TEPO142716# TEPO143#
68 80
75 87
62 74
71 89
16” 3” 12-3/4” TEPO163# 115 125 105 125
18” 3” 3-7/16”
12-3/4” 14-1/2”
TEPO183# TEPO183716#
129 139
138 144
118 149
134 141
20” 3” 3-7/16”
12-3/4” 14-1/2”
TEPO203# TEPO203716#
189 195
196 202
178 190
197 203
24” 3-7/16” 14-1/2” TEPO243716# 246 250 234 256
30” 3-15/16” 14-1/2” TEPO3031516#• 271 296 265 305
36” 4-7/16” 14-1/2” TEPO364716#• 406 374 400 401
# = Trough and Bearing type; U=U-Trough, F=Flared, T=Tubular, R=Rectangular, BB=Ball Bearing, RB=Roller Bearing • Flanges must be welded on and not formed
35
Screw Conveyor Component Guide
flUsh end disChaRge TROUgh ends
U- TrOUGh aND rECTaNGUlar flUSh END
A
B
F
C
GH
DE
Note: U-Trough and Rectangular Flush End Discharge Trough Ends are dimensionally the same .
Screw Dia .
Shaft Dia .
A B C D
Bolts E F G H Part Number
Weight (Lbs .)
4” 1” 7-1/2” 3-5/8” 1-7/16” 3/8” 3/16” 3-3/4” 7/8” 1-1/4” TEFEO41# 9
6” 1-1/2” 10” 4-1/2” 1-1/2” 3/8” 3/16” 5” 13/16” 1-1/2” TEFEO6112# 13
9” 1-1/2” 2” 13-1/4” 6-1/8” 1-5/8” 3/8” 1/4” 7-1/8” 1” 1-5/8” TEFEO9112#
TEFEO92#19 24
12”2”
2-7/16” 3”
17-1/4” 7-3/4” 2” 1/2” 1/4” 8-7/8” 1-1/4” 2-1/8”TEFEO122#
TEFEO122716# TEFEO123#
39 40 58
14” 2-7/16” 3” 19-1/4” 9-1/4” 2” 1/2” 1/4” 10-1/8” 1-1/4” 2-1/8” TEFEO142716#
TEFEO143#48 66
16” 3” 21-1/4” 10-5/8” 2-1/2” 5/8” 3/8” 11-1/8” 1-1/4” 2-1/8” TEFEO163# 85
18” 3” 3-7/16” 24-1/4” 12-1/8” 2-1/2” 5/8” 3/8” 12-3/8” 1-1/2” 2-5/8” TEFEO183#
TEFEO183716#94
101
20” 3” 3-7/16” 26-1/4” 13-1/2” 2-1/2” 5/8” 3/8” 13-3/8” 1-1/2” 2-5/8” TEFEO203#
TEFEO203716#134 140
24” 3-7/16” 30-1/4” 16-1/2” 2-1/2” 5/8” 3/8” 15-3/8” 1-1/2” 2-5/8” TEFEO243716# 179
30” 3-15/16” 38” 19-1/2” 3”• 5/8” 1/2”• 18-3/8” 1-3/4” 3”• TEFEO3031516#• 270
36” 4-7/16” 44” 22-1/2” 3”• 5/8” 1/2”• 21-3/8” 1-3/4” 3”• TEFEO364716#• 340
# = Trough and Bearing type; U=U-Trough, F=Flared, T=Tubular, R=Rectangular, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • Flanges Must Be Welded On and Not Formed
36
Screw Conveyor Component Guide
flUsh end disChaRge TROUgh ends
TUBUlar flUSh END flarED flUSh END
A
A2
BF
C
ED
Screw Dia .
Shaft Dia .
A B C D E F
Bolts G H J Part Number
Weight (Lbs .)
Tubular Flared4” 1” 7-1/2” 3-3/4” 3/16” 7/8” 1 1/4” 3/8” X X X TEFEO41# 6 N/A6” 1-1/2” 10” 5” 3/16” 13/16” 1-1/2” 3/8” 16-5/8” 7” 1-1/2” TEFEO6112# 11 13
9” 1-1/2” 2” 13-1/4” 7-1/8” 1/4” 1” 1-5/8” 3/8” 21-1/4” 9” 1-5/8” TEFEO9112#
TEFEO92#15 18
19 23
12”2”
2-7/16” 3”
17-1/4” 8-7/8” 1/4” 1-1/4” 2-1/8” 1/2” 26-3/8” 10” 2”TEFEO122#
TEFEO122716# TEFE0123#
29 31 43
37 38 56
14” 2-7/16” 3” 19-1/4” 10-1/8” 1/4” 1-1/4” 2-1/8” 1/2” 28-3/8” 11” 2” TEFEO142716#
TEFEO143#39 51
45 55
16” 3” 21-1/4” 11-1/8” 3/8” 1-1/4” 2-1/8” 5/8” 32-1/2” 11-1/2” 2-1/2” TEFEO163# 65 73
18” 3” 3-7/16” 24-1/4” 12-3/8” 3/8” 1-1/2” 2-5/8” 5/8” 36-1/2” 12-1/8” 2-1/2” TEFEO183#
TEFEO183716#78 89
84 89
20” 3” 3-7/16” 26-1/4” 13-3/8” 3/8” 1-1/2” 2-5/8” 5/8” 39-1/2” 13-1/2” 2-1/2” TEFEO203#
TEFEO203716#115 127
130 144
24” 3-7/16” 30-1/4” 15-3/8” 3/8” 1-1/2” 2-5/8” 5/8” 45-1/2” 16-1/2” 2-1/2” TEFEO243716# 157 18130” 3-15/16” 37-1/4” 18-3/8” 1/2”• 1-3/4” 3-1/8”• 5/8” 47-3/8” 19-1/2” 3”• TEFEO3031516#• 250 19636” 4-7/16” 43-1/4” 21-3/8” 1/2”• 1-3/4” 3-1/8”• 5/8” 54-3/8” 22-1/2” 3”• TEFEO364716#• 320 306
# = Trough and Bearing type; T=Tubular Trough, F=Flared Trough, R=Rectangular Trough, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • Flanges Must Be Welded On and Not Formed
n n u Y H D H M
UL E SE
REFER N E
W GH : 5
1
929 X 2 /1 DI .F D USH END
F AN E EARI G
B
H
F
G
ED
J
C
A
37
Screw Conveyor Component Guide
bUlKhead TROUgh ends
flarEDU-TrOUGh/rECTaNGUlar TUBUlar
9"
A
B
SEE TEFO DIM STANDARDSFOR THE REST OF DIMENSIONS
Note: Dimensions shown are the same for each style trough .
Screw Dia .
Shaft Dia . A B • Part Numbers Weight (Lbs .)
U-Trough Flared Tubular Rectangular4” 1” 7-3/4” 7-3/4” TEBH41# 23 N/A 21 N/A6” 1-1/2” 9-3/4” 9-3/4” TEBH6112# 32 35 31 33
9” 1-1/2” 2” 13-1/2” 13-3/4” TEBH9112#
TEBH92#53 57
57 62
50 53
53 57
12”2”
2-7/16” 3”
16-7/8” 17-1/4”TEBH122#
TEBH122716# TEBH123#
96 98 110
103 104 116
89 91 103
96 98 110
14” 2-7/16” 3” 19-5/8” 19-1/4” TEBH142716#
TEBH143#112 134
129 141
116 128
112 134
16” 3” 21-7/8” 21-1/4” TEBH163# 195 205 185 195
18” 3” 3-7/16” 21-7/8” 21-1/4” TEBH183#
TEBH183716#209 221
218 224
198 209
209 221
20” 3” 3-7/16” 21-7/8” 21-1/4” TEBH203#
TEBH203716#262 273
273 289
235 247
262 273
24” 3-7/16” 21-7/8” 21-1/4” TEBH243716# 317 333 277 31730” 3-15/16” 26-1/4” 26-1/4” TEBH3031516# 375 390 410 37536” 4-7/16” 26-1/4” 26-1/4” TEBH364716# 490 520 480 490
# = Trough and Bearing type; U=U-Trough, R=Rectangular Trough, F=Flared Trough, T=Tubular Trough, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • ”B” Dimension Is Width Of Drive Plate, Not Trough End Plate
38
Screw Conveyor Component Guide
TORqUe aRm TROUgh ends
flarEDU-TrOUGh/rECTaNGUlar TUBUlar
VARIES BASED ON DRIVE SPECIFIED
A
B
VARIES BASEDON DRIVE SPECIFIED
SEE TEFO DIM STANDARDSFOR THE REST OF DIMENSIONS
Note: Dimensions shown are the same for each style trough .
Screw Dia .
Shaft Dia . A B • Part Numbers
4” 1” 4-5/8” 11” TETAO41#6” 1-1/2” 5-5/8” 11-3/4” TETAO6112#
9” 1-1/2” 2” 7-7/8” 11-3/4”
12-1/4”TETAO9112# TETAO92#
12”2”
2-7/16” 3”
9-5/8”12-1/4”
13” 13-3/4”
TETAO122# TETAO122716#
TETAO123#
14” 2-7/16” 3” 10-7/8” 13”
13-3/4”TETAO142716#
TETAO143#16” 3” 12” 13-3/4” TETAO163#
18” 3” 3-7/16” 13-3/8” 13-3/4”
15-1/2”TETAO183#
TETAO183716#
20” 3” 3-7/16” 15” 13-3/4”
15-1/2”TETAO203#
TETAO2O3716#24” 3-7/16” 18-1/8” 15-1/2” TETAO243716#30” 3-15/16” 21-1/2” 15-3/4” TETAO3031516#36” 4-7/16” 24” 16-1/4” TETAO364716#
# = Trough and Bearing type; U=U-Trough, R=Rectangular Trough, F=Flared Trough, T=Tubular Trough, BB=Ball Bearing, RB=Roller Bearing, BBRB=Slotted for Roller and Ball Bearing • ”B” Dimension Is Width Of Drive Plate, Not Trough End Plate
39
Screw Conveyor Component Guide
seals
P S 1 1 2 L
PS = Plate SealWPS = Waste Pack SealSGS = Split Gland SealFGS = Flanged Gland Seal
For PS:L = Lip Seal
For WPS:WL = Lip Seal
NOMENClaTUrE
Several types of shaft seals are available to prevent contamination of bulk materials being conveyed
or the leakage of bulk materials from screw conveyors. Improper selection of shaft seals could result
in the loss of production or exposure of personnel to a harmful bulk material.
PlaTE SEal
Plate seals are economical and effective shaft seals that are mounted between a trough end
and a flanged bearing by means of common bolts. Stock plate seals are available with neoprene
lip seals. Other types of seal cartridges are also available upon request. Plate seals can also be
used with pedestal trough ends and pillow block bearings.
WaSTE PaCK SEal
Waste pack seals are the most common type of screw conveyor shaft seal because of low
cost and simple design and are mounted between a trough end and a flanged bearing by
means of common bolts. All KWS waste pack seals are available with neoprene lip seal. Other
types of seal cartridges are also available upon request. An opening at the top of the seal
housing facilitates the packing of loose fiber material called waste packing. The waste packing
forms a seal around the diameter of the shaft. The waste packing can be oiled for specific
applications. Waste pack seals can also be used with pedestal trough ends and pillow block
bearings.
SPlIT GlaND SEal
Split gland seals are compression type seals utilizing one ring of rope packing and typically
located on the outside of a pedestal trough end. The standard rope packing is graphite
impregnated for wear resistance. Other types of rope packing are available including Teflon and
Fiberfrax. Split gland seals are easily adjusted by tightening the upper and lower nuts to further
compress the packing around the shaft.
flaNGED GlaND SEal
Flanged gland seals are compression type seals utilizing multiple rings of packing and located
on the outside of a pedestal trough end. The standard rope packing is graphite impregnated
for wear resistance. Other types of rope packing are available including Teflon and Fiberfrax.
Flanged gland seals are easily adjusted by tightening the ”follower” nuts to further compress
the rope packing around the shaft. Many custom designs are available, including air purged,
grease purged and split ”follower” type.
For SGS and FGS:G = GraphiteH = Hi -TempN = NylonT = Teflon
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
40
Screw Conveyor Component Guide
plaTe and WasTe paCK seal
"A"
"A"
BC
BC
1/2"
A
D
"A"
"A"
BC
BC
E
A
D
PlaTE SEal WaSTE PaCK SEal
AB
CD
Bolts E
Part Number Weight (Lbs .)
Shaft Dia .
Min . Max . Plate SealWaste Pack
SealPlate Seal
Waste Pack Seal
1” 4” 2-3/4” 2-3/4” 3/8” 1-3/4” PS1L WPS1WL 2 3
1-1/2” 5-3/8” 4” 4-1/8” 1/2” 1-3/4” PS112L* WPS112WL* 4 7
2” 6-1/2” 4-3/8” 5-1/8” 5/8” 1-3/4” PS2L* WPS2WL* 6 9
2-7/16” 7-3/8” 5-3/8” 5-5/8” 5/8” 1-3/4” PS2716L* WPS2716WL* 8 11
3” 7-3/4” 6” 6” 3/4” 1-3/4” PS3L* WPS3WL* 8 12
3-7/16” 9-1/4” 6-3/4” 7” 3/4” 2-1/4” PS3716L* WPS3716WL* 12 18
3-15/16” 10-1/4” 7-3/4” 7-3/4” 7/8” 2-1/4” PS31516L WPS31516WL 14 22
4-7/16” 10-7/8” 8-3/4” 8-3/4” 7/8” 2-1/4” PS4716L WPS4716WL 15 24
* KWS Stock Component (Includes Lip Seal Style Only)
41
Screw Conveyor Component Guide
spliT gland and flanged gland seal
SPlIT GlaND SEal flaNGED GlaND SEal
"A"
"A"
EF
EF
G
HA
8"MIN. REPACKING
CLEARANCE
A
B C D
Bolts E F G
H Bolts
Part Number Weight (Lbs .)
Shaft Dia .
Split Gland Seal
Flanged Gland Seal
Split Gland Seal
Flanged Gland Seal
1” 4-1/8” 1-3/4” 3/8” 4” 2-3/4” 3/8” 3/8” SGS1# FGS1# 4 10
1-1/2” 4-5/8” 2-3/16” 1/2” 5-3/8” 4” 3/8” 1/2” SGS112#* FGS112#* 5 14
2” 5-3/8” 2-5/8” 1/2” 6-1/2” 5-1/8” 3/8” 5/8” SGS2#* FGS2#* 6 18
2-7/16” 6-1/8” 3-1/16” 5/8” 7-3/8” 5-5/8” 3/8” 5/8” SGS2716#* FGS2716#* 8 21
3” 6-3/4” 3-9/16” 5/8” 7-3/4” 6” 3/8” 3/4” SGS3#* FGS3#* 9 27
3-7/16” 8-3/4” 4-1/8” 3/4” 9-1/4” 6-3/4” 1/2” 3/4” SGS3716#* FGS3716#* 13 30
3-15/16” 9-1/2” 4-1/2” 3/4” 10-1/4” 7-3/4” 1/2” 7/8” SGS31516# FGS31516# 14 35
4-7/16” 10” 4-5/8” 3/4” 10-3/4” 8-3/4” 1/2” 7/8” SGS4716# FGS4716# 15 40
* KWS Stock Component (Graphite seal material only) #Seal Material; G=Graphite, H=Hi-Temp, N=Nylon, T=Teflon
"A"
"A"
R
2 2 47
X 028
IG
R FI \SE \
7 / 014n n.
B
GS S
C
C
B
A
D
42
Screw Conveyor Component Guide
end beaRings
End bearings provide support at one or both ends of a screw conveyor and must be designed to handle
radial and thrust loads as well as shaft runout.
Radial load as measured at the end bearing is half the weight of the last screw section. Radial loads act at
right angles to the shaft centerline or bearing axis of rotation. Radial loads are typically negligible at the screw
conveyor end shaft. However, end bearings located at the drive end of a screw conveyor are subject to higher
radial loading due to the weight of the gear reducer and motor or overhung loads from chain and sprocket drives.
Thrust load is the reaction through the conveyor screws from the movement of a bulk material. Thrust loads
are also called axial loads and act parallel to the shaft centerline or bearing axis of rotation. The end bearing on
the drive end must prevent axial movement of the screw. Any axial movement of the screw could allow contact
with the hanger bearings or trough ends. KWS recommends locating
the drive unit and thrust bearing at the discharge end of a screw
conveyor, placing the screws in tension and preventing misalignment
when the conveyor is heavily loaded.
Shaft runout occurs when the shaft rotates in an eccentric pattern
about the centerline axis. Shaft runout is caused by the minor amount
of ”bend” inherent in any screw due to the manufacturing process.
Shaft runout must be accounted for at the bearings to avoid premature
bearing failure. KWS recommends using a fixed thrust bearing at the
drive end and a ball or spherical roller bearing at the tail end.
E B F 1 1 2 B BEB = End Bearing
NOMENClaTUrE
flaNGED rOllEr BEarINGFlanged roller bearings are mounted directly to standard trough ends on the drive end of a screw conveyor. The flanged roller bearing housing contains two sets of tapered bearings that are designed to withstand the thrust of the bulk material being conveyed.
flaNGED Ball BEarINGFlanged ball bearings are mounted directly to standard trough ends on the tail end of a screw conveyor. The ball bearing housing contains one set of ball bearings that are designed to withstand radial loads only.
PIllOW BlOCK rOllEr BEarINGPillow block roller bearings are mounted to pedestal trough ends on the drive end of a screw conveyor. The flanged roller bearing housing contains two sets of tapered or spherical bearings that are designed to withstand the thrust of the bulk material being conveyed.
PIllOW BlOCK Ball BEarINGPillow block ball bearings are mounted to pedestal trough ends on the tail end of a screw conveyor. The ball bearing housing contains one set of ball bearings that are designed to withstand radial loads only.
F = FlangeP = Pillow Block
BB = Ball BearingRB = Roller Bearing
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2 -7/16” 4716 = 4-7/16”
43
Screw Conveyor Component Guide
ROlleR beaRing flange UniT
ball beaRing flange UniT
Shaft Dia . A B C D E Bolt Dia . Part NumberWeight (Lbs .)
1” NOT AVAILABLE1-1/2” 4–1/8” 5-3/8” 3-3/8” 1-3/16” 1/2” EBF112R* 11
2” 4–3/8” 5-5/8” 3-1/2” 1-3/16” 1/2” EBF2R* 122-7/16” 5-3/8” 6-7/8” 4” 1-1/2” 5/8” EBF2716R* 20
3” 6” 7-3/4” 4-1/2” 1-5/8” 3/4” EBF3R* 263-7/16” 7” 9-1/4” 5” 1-7/8” 3/4” EBF3716R* 503-15/16” 7-1/2” 10-1/4” 6-1/4” 2-1/8” 7/8” EBF31516R 754-7/16” 8-3/4” 10-7/8” 7-3/4” 2-7/16” 7/8” EBF4716R 90
* KWS Stock Component
Shaft Dia . A B C D E Bolt Dia . Part Number Weight (Lbs .)
1” 2-3/4” 3-3/4” 1 3/8” 1/2” 7/16” EBF1BB* 21-1/2” 4” 5-1/8” 2” 1/2” 1/2” EBF112BB* 5
2” 5-1/8” 6-1/2” 2-1/4” 11/16” 5/8” EBF2BB* 102-7/16” 5-5/8” 6-7/8” 2-3/8” 5/8” 5/8” EBF2716BB* 11
3” 6 ” 7-3/4” 3-1/16” 7/8” 3/4” EBF3BB* 223-7/16” 6-3/4” 8-7/16” 3-3/8” 1” 3/4” EBF3716BB* 283-15/16” NOT AVAILABLE4-7/16” NOT AVAILABLE
* KWS Stock Component - All Flange Bearings Include 1/8” Alemite Fitting
SHIP
MIN
8
AB
A B
CD
E
N
R V R R P
- 8-20
AB
A B
E
CD
44
Screw Conveyor Component Guide
ROlleR beaRing pillOW blOCK
ball beaRing pillOW blOCK
Shaft Dia .
A BC
Bolt Dia .D E F G H Part Number
Weight (Lbs .)
1” NOT AVAILABLE
1-1/2” 3-3/8” 1-1/4” 1/2” 6-1/4” 7-7/8” 2-3/8” 4-1/4” 2-1/8” EBP112R 10
2” 3-1/2” 1-5/16” 5/8” 7” 8-7/8” 2-1/2” 4-1/2” 2-1/4” EBP2R 12
2-7/16” 4” 1-5/8” 5/8” 8-1/2” 10-1/2” 2-7/8” 5-1/2” 2-3/4” EBP2716R 20
3” 4-1/2” 1-7/8” 3/4” 9-1/2” 12” 3” 6-1/4” 3-1/8” EBP3R 28
3-7/16” 5” 2-1/4” 7/8” 11” 14” 3-1/2” 7-1/2” 3-3/4” EBP3716R 46
3-15/16” 6-1/4” 2-7/16” 3/4”• 12-1/2” 15-1/4” 4-1/2” 8-7/16” 4-3/4” EBP31516R• 69
4-7/16” 6-3/4” 2-3/4” 3/4”• 13-1/2” 16-5/8” 4-5/8” 9-5/16” 4-3/4” EBP4716R• 85
• Uses a 4 bolt base instead of 2.
Shaft Dia . A BC Bolt Dia .
D E F G H Part NumberWeight (Lbs .)
1” 3/4” 9/16” 3/8” 4-1/8” 5-1/2” 1-7/16” 2-3/4” 1-7/16” EBP1BB 2
1-1/2” 1-3/16” 15/16” 1/2” 5-1/2” 7-1/4” 1-15/16” 4-3/16” 2-1/8” EBP112BB 6
2” 1-3/8” 7/8” 5/8” 7” 8-7/8” 2-3/8” 4-15/16” 2-1/2” EBP2BB 9
2-7/16” 1-7/16” 15/16” 3/4” 8” 10-3/4” 2-5/8” 6-1/16” 3” EBP2716BB 16
3” 1-1/2” 1-1/4” 7/8” 9” 11-3/4” 3” 6-15/16” 3-1/2” EBP3BB 21
3-7/16” 1-5/8” 1-5/16” 7/8” 11” 14” 3-3/8” 8” 4” EBP3716BB 32
3-15/16” NOT AVAILABLE
4-7/16” NOT AVAILABLE
SH TU T ME
C B N \ LL BLO AL A
LI Y
V R R P P R R R B R
eera t
D
C
A
H
F
G
EB
Scr w n H L D E R N S R N IL W C RIN B MS d
Y
2
AD
C
EF
G
B
H
45
Screw Conveyor Component Guide
shafTs
Shafts are designed to transmit rotation and torque between individual conveyor screw sections
and provide radial support at the hanger bearings and trough ends. Shafts are manufactured from
cold-rolled C-1045 carbon steel as well as 304 and 316 stainless steel; other materials are available
upon request. Cold-rolled C-1045 carbon steel shafts are adequate for most applications. However,
high-tensile strength materials such as C-4140 may be required for specific applications. Stainless
steel shafts may be necessary when corrosive or contaminable materials are to be conveyed. Using a
combination of CNC and specially-built jigs, KWS shafts are manufactured to the tightest tolerances
available and ensure perfect bolting alignment.
Shaft size is determined based on full motor torque of the drive assembly and the materials of
construction of the shafts. Cold-rolled C-1045 carbon steel has a yield strength of 45,000 psi. 304 and
316 stainless steel shafts have a yield strength of 30,000 psi. Please refer to the Engineering Section
of the KWS Engineering Guide for further information on shaft selection. A significant safety factor is
included in the shaft design calculations.
For information regarding the weights of each shaft, please contact KWS Engineering.
COUPlING ShafT
Coupling shafts transmit rotation and torque between screw
sections. Clearance is provided between the screw sections
for a hanger and hanger bearing support. Hardened shafts are
required for hard iron hanger bearings.
ClOSE COUPlING ShafT
Close coupling shafts transmit rotation and torque between
screw sections. The screw sections are butted together with
no clearance and clocked to form one continuous helix.
Close coupled screws are supported by a wear liner or wear
bars that are welded into the trough sections.
END ShafT
End shafts support the tail end of the screw section at
the non-drive end of the screw conveyor. End shafts are
typically the same diameter as the coupling and drive shafts.
End shaft length is dependent on the type of end bearing,
seal and trough end.
46
Screw Conveyor Component Guide
shafTs
haNGEr END ShafT
Hanger end shafts are very similar to end shafts except that
a hanger with hanger bearing is used as the end bearing
instead of a flanged or pillow block bearing. Hanger end
shafts are hardened in the bearing area when using hard
iron hanger bearings.
rOllEr ThrUST BEarING DrIVE ShafT
Roller thrust bearing drive shafts are used with roller thrust
bearings. A key-way is provided to couple the drive shaft
with the output shaft of a gear reducer or a sprocket with
chain. The drive shaft has snap ring grooves on either side
of the flanged roller bearing to capture thrust loading in
both directions.
BUlKhEaD DrIVE ShafT
Bulkhead drive shafts are extended shafts that are used
with KWS bulkhead trough ends. Standard bulkhead drive
shafts can be designed to work with any gear reducer
manufacturer.
TOrqUE arM DrIVE ShafT
Torque arm drive shafts are extended shafts that are used
with KWS torque arm trough ends. Standard torque arm
drive shafts can be designed to work with any gear reducer
manufacturer.
47
Screw Conveyor Component Guide
COUpling shafT
ClOse COUpling shafT
C S 3 7 1 6 H
CS = Coupling Shaft
Blank = StandardH = HardenedSS = Stainless
Steel
NOMENClaTUrE
Shaft Dia . Part Number A B C D1” CS1#* 2” 1-1/2” 3” 7-1/2”
1-1/2” CS112#* 3” 2” 4-3/4” 11-1/2”2” CS2#* 3” 2” 4-3/4” 11-1/2”
2-7/16” CS2716#* 3” 3” 4-7/8” 12-3/4”3” CS3#* 3” 3” 5” 13”
3-7/16” CS3716#* 4” 4” 7” 18”3-15/16” CS31516# 4” 4” 7-3/8” 18-3/4”4-7/16” CS4716# 4” 5” 7-3/4” 20-1/2”
* KWS Stock Component (Made-to-order End Shafts are available upon request) # Bearing Area; Blank = Standard, H = Hardened or Material; Blank = Standard, SS = Stainless Steel
C C S 3 7 1 6 S SCCS = Close
Coupling Shaft
NOMENClaTUrE
Shaft Dia . Part Number A B C D1” CCS1# 2” 1/2” 3” 6”
1-1/2” CCS112#* 3” 7/8” 4-3/4” 9-1/2”2” CCS2#* 3” 7/8” 4-3/4” 9-1/2”
2-7/16” CCS2716#* 3” 15/16” 4-7/8” 9-3/4”3” CCS3#* 3” 1” 5” 10”
3-7/16” CCS3716#* 4” 1-1/2” 7” 14”3-15/16” CCS31516# 4” 1-11/16” 7-3/8” 14-3/4”4-7/16” CCS4716# 4” 1-7/8” 7-3/4” 15-1/2”
* KWS Stock Component (Standard Only) # Material; Blank = Standard, SS = Stainless Steel
CD
A B
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Note: Also available as a 3-bolt shaft . Dimensions may change for a 3-bolt shaft .
Note: Also available as a 3-bolt shaft . Dimensions may change for a 3-bolt shaft .
Blank = StandardSS = Stainless
Steel
48
Screw Conveyor Component Guide
end shafT
E S 1 1 2
ES = End Shaft
NOMENClaTUrE
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Shaft Dia . Drilling A B Part Number
1” 2-Bolt 7-1/2” 3/4” ES1*
1-1/2” 2-Bolt 11-3/4” 1” ES112*
2” 2-Bolt 12” 1” ES2*
2-7/16” 2-Bolt 13” 1-1/2” ES2716*
3” 2-Bolt 14” 1-1/2” ES3*
3-7/16” 2-Bolt 17-3/8” 2” ES3716*
3-15/16” 2-Bolt 19-1/4” 2” ES31516
4-7/16” 2-Bolt 20-3/4” 2-1/2” ES4716
* KWS Stock Component. (Made-to-order End Shafts are available upon request)
49
Screw Conveyor Component Guide
hangeR end shafT
H E S 1 1 2 H
HES = Hanger End Shaft
NOMENClaTUrE
Blank = StandardH = HardenedSS = Stainless
Steel
Shaft Dia . A B C D E Part Number
1” 3” 1-5/8” 4-5/8” 3/4” 2-3/8” HES1#
1-1/2” 4-3/4” 2-1/8” 6-7/8” 1” 3-1/8” HES112#
2” 4-3/4” 2-1/8” 6-7/8” 1” 3-1/8” HES2#
2-7/16” 4-7/8” 3-1/4” 8-1/8” 1-1/2” 4-3/4” HES2716#
3” 5” 3-1/4” 8-1/4” 1-1/2” 4-3/4” HES3#
3-7/16” 7” 4-1/4” 11-1/4” 2” 6-1/4” HES3716#
3-15/16” 7-3/8” 4-1/4” 11-5/8” 2” 6-1/4” HES31516#
4-7/16” 7-3/4” 5-1/4” 13” 2-1/2” 7-3/4” HES4716#
# Bearing Area; Blank = Standard, H = Hardened or Material; Blank = Standard, SS = Stainless Steel
eng nt n N E U E E E A E R O E O N R U S R
_ ______ ____ __
Desig
A BC
DE
HANGER
INSIDETROUGHEND
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Note: Also available as a 3-bolt shaft. Dimensions may change for a 3-bolt shaft.
50
Screw Conveyor Component Guide
ROlleR ThRUsT beaRing shafT
R T B 1 1 2
RTB = Roller Thrust Bearing
NOMENClaTUrE
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Shaft Dia . B A (WPS) Part Number
1” Not Available
1-1/2” 1” 15-15/32” RTB112
2” 1” 16-1/8” RTB2
2-7/16” 1-1/2” 18-5/16” RTB2716
3” 1-1/2” 19-7/16” RTB3
3-7/16” 2” 24-1/8” RTB3716
3-15/16” Contact KWS RTB31516
4-7/16” Contact KWS RTB4716
51
Screw Conveyor Component Guide
bUlKhead shafT
Q D S - (Varies) - 2 - 2 B - B H
Drive Manufacturer:N = Nord Drive ShaftQ = Quantis Drive Shaft(Other Mfg. drive shafts available)
NOMENClaTUrE
2B = 2 Bolt3B = 3 Bolt
Drive Size / Adapter Style
Shaft Dia . A Part Number
1” 3/4” •DS-#-1-#-BH
1-1/2” 1” •DS-#-112-#-BH
2” 1” •DS-#-2-#-BH
2-7/16” 1-1/2” •DS-#-2716-#-BH
3” 1-1/2” •DS-#-3-#-BH
3-7/16” 2” •DS-#-3716-#-BH
3-15/16” 2” •DS-#-31516-#-BH
4-7/16” 2-1/2” •DS-#-4716-#-BH
# = Varies Depending Upon Drive Selection and Number of Bolts •Drive Manufcturer: N = Nord, Q = Quantis
A
12
DIMENSIONS VARY DEPENDINGUPON DRIVE SELECTION. CONTACTKWS ENGINEERING FOR DIMENSIONS
A
BULKHEAD TROUGH END
SEAL
9"
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
DS = Drive Shaft BH = Bulkhead
52
Screw Conveyor Component Guide
TORqUe aRm shafT
NOMENClaTUrE
Shaft Dia . A Part Number
1” 3/4” •DS-#-1-#-P
1-1/2” 1” •DS-#-112-#-P
2” 1” •DS-#-2-#-P
2-7/16” 1-1/2” •DS-#-2716-#-P
3” 1-1/2” •DS-#-3-#-P
3-7/16” 2” •DS-#-3716-#-P
3-15/16” 2” •DS-#-31516-#-P
4-7/16” 2-1/2” •DS-#-4716-#-P
# = Varies Depending Upon Drive Selection and Number of Bolts • Drive Manufacturer: N = Nord, Q = Quantis
Q D S - (Varies) - 2 - 2 B - P
2B = 2 Bolt3B = 3 BoltDrive Size / Adapter Style
P = Pedestal
CH D
A
R
D
M
.PM
SIG R
K EAD
DIMENSIONS VARY DEPENDINGUPON DRIVE SELECTION. CONTACT
KWS ENGINEERING FOR DIMENSIONS
TORQUE ARMTROUGH END
BEARING
SEAL
A
SNAP GROVERING
Shaft Diameter1 = 1” 3 = 3”
112 = 1-1/2” 3716 = 3-7/16”2 = 2” 31516 = 3-15/16”
2716 = 2-7/16” 4716 = 4-7/16”
Drive Manufacturer:N = Nord Drive ShaftQ = Quantis Drive Shaft(Other Mfg. drive shafts available)
DS = Drive Shaft
53
Screw Conveyor Component Guide
TROUghs
NOMENClaTUrE
KWS designs and manufactures many different types of troughs and tubular housings for every
bulk material handling application. All troughs and tubular housings are available in carbon steel
construction as well as abrasion-resistant steels, hot-dipped galvanized and stainless steel. KWS
can manufacture troughs and tubular housings out of any commercially available metal. Plate end
flanges are CNC cut and jig-welded to ensure exact alignment with adjacent trough sections. KWS
recommends supporting every trough section with flanged feet or saddles.
U-TrOUGhS
U-troughs are the most common type of trough for screw conveyors and screw feeders. The U–
trough design is simple, economical and provides access for maintenance.
aNGlE flaNGE
Angle flange troughs are manufactured with structural
angle top flanges to provide extra rigidity. Stock angle
flange troughs utilize thinner gauges of metal and are
typically used in light and medium duty applications.
fOrMED flaNGE
Formed flange troughs are manufactured with formed
top flanges. Stock formed flange troughs utilize heavier
gauges of steel and are typically used for medium to
heavy duty applications. Formed flange troughs are dust-
tight.
T U F 1 2 3 1 6 JT = Trough
Shape U = U-Trough FL = Flared T = Tubular R = Rectangular Material Thickness
14 = 14GA 250 = 1/4”12 = 12GA 375 = 3/8”10 = 10GA 500 = 1/2”316 = 3/16”
Housing ConfigurationA = Angle Flange FC = Formed ChannelF = Formed Flange DB = Drop BottomDF = Double Flange DA = Double Angle
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
J = JacketedBlank = All Others
54
Screw Conveyor Component Guide
TROUghs
DOUBlE fOrMED flaNGE
Double formed flange troughs are manufactured with two
formed top flanges for added rigidity. Double formed flange
troughs provide an effective dust-tight seal when used with
flanged covers and a compressible gasket material.
fOrMED ChaNNEl
Formed channel troughs are manufactured with two formed
side channels to provide rigidity for spanning long distances
without intermediate supports. The lower, curved trough
section is typically bolted to the channel sides and can be
replaced when worn.
DrOP BOTTOM
Drop bottom troughs are manufactured with a removable or
hinged lower curved trough section. Drop bottom troughs
allow access to the screw for clean out or maintenance
purposes. Removable drop bottom troughs are bolted on
close spacing on both sides of the trough. Hinged drop
bottom troughs are hinged on one side with quick-release
clamps and safety bolts on the other side.
JaCKETED
Jacketed troughs are manufactured with an outer jacket that
is seal-welded to the trough. Bulk materials can be cooled,
heated or maintained at a constant temperature with jacketed
troughs. Heat transfer mediums such as water, hot oil or steam
flow through the jacketed trough to provide heat transfer.
ASME coded troughs are available from KWS.
flarED TrOUGh
Flared troughs are manufactured with formed top flanges.
The top opening of a flared trough is wider than a U-trough
to allow sticky or viscous bulk materials to enter the trough
easier. Many mixing screw conveyors utilize flared troughs
because the additional space above the screw creates more
room for bulk materials to be mixed.
55
Screw Conveyor Component Guide
TROUghs
TUBUlar hOUSINGS
Tubular housings are typically used when a screw conveyor is inclined over 15-degrees. Conveying
efficiency is greatly improved with tubular housings because bulk materials are contained and fall back
is reduced. Tubular housings are also used for weather-tight applications and used to hold internal
pressure in a screw conveyor. ASME coded tubular housings are available from KWS.
NON-SPlIT
Non-split tubular housings are manufactured by rolling a cylindrical
tube and continuously welding at the seam or cutting down
spouting or pipe to length.
SPlIT
Split tubular housings are manufactured by rolling two halves and
forming flanges on each side. The two halves are then bolted
together to form a rigid assembly.
rECTaNGUlar TrOUGhS
Rectangular troughs are typically used in applications for conveying abrasive bulk materials. The
space between the screw and rectangular trough fills with the bulk material being conveyed forming
a static layer. The bulk material being conveyed slides over the static material and eliminates wear
on the rectangular trough. Rectangular troughs are also beneficial when utilizing certain abrasion-
resistant steels such as AR-400, AR-500 and chromium carbide steel due to their low formability.
aNGlE flaNGE
Angle flange rectangular troughs are manufactured with structural angle
top flanges to provide extra rigidity similar to U-troughs.
fOrMED flaNGE
Formed flange rectangular troughs are manufactured with formed
angle top flanges similar to U-troughs.
aNGlE flaNGE -TOP & BOTTOM
Angle flange – top & bottom rectangular troughs are manufactured
with structural angles on both the top and bottom flanges. Some
high strength steel plate materials such as AR-400 cannot be formed
at 90-degree angles and angle flanges are required.
fOrMED flaNGE -TOP & BOTTOM
Formed flange – top & bottom rectangular troughs are manufactured
with formed angles on both the top and bottom flanges.
56
Screw Conveyor Component Guide
U-TROUghs
aNGlED flaNGE fOrMED flaNGE DOUBlE fOrMED flaNGE
Screw
Dia .
Trough
Thk .A B C D E F G
Angle Flange Formed Flange Double Formed Flange
Part
Number
Wt . Per ft . (Lbs .)
Part
Number
Wt . Per ft . (Lbs .)
Part NumberWt
Per ft . (Lbs .)
4”14 Ga . 12 Ga . 10 Ga .
5” 3-5/8” 1” 7-1/4” 1-1/4” 7/8” 7-1/2”TUA414* TUA412 TUA410
7 9 12
TUF414 TUF412 TUF410
5 7 9
TUDF414 TUDF412 TUDF410
6 9
11
6”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
7” 4-1/2” 1-1/4”
9-3/4” 9-3/4” 9-3/4” 9-7/8”
10”
1-3/8”
7/8” 7/8” 7/8”
1-5/8” 1-3/4”
9-3/4”
TUA614* TUA612 TUA610 TUA6316 TUA6250
9 13 16 22 30
TUF614 TUF612 TUF610
TUF6316* TUF6250
7 10 13 19 28
TUDF614 TUDF612 TUDF610 TUDF6316 TUDF6250
8 12 15 21 30
9”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
10” 6-1/8” 1-1/2”
13-1/4” 13-1/4” 13-1/4” 13-3/8” 13-1/2”
1-11/16”
7/8” 7/8” 7/8”
1-5/8” 1-3/4”
13-3/8”
TUA914* TUA912 TUA910* TUA9316 TUA9250
12 16 21 27 39
TUF914 TUF912 TUF910
TUF9316* TUF9250
10 13 17 22 34
TUDF914 TUDF912 TUDF910 TUDF9316 TUDF9250
11 15 20 26 38
12”
12 Ga . 10 Ga . 3/16” 1/4”
13” 7-3/4” 2”
17-1/4” 17-1/4” 17-3/8” 17-1/2”
2-1/8”
7/8” 7/8”
1-5/8” 1-3/4”
17-1/4”
TUA1212* TUA1210 TUA12316 TUA12250
21 27 35 46
TUF1212 TUF1210
TUF12316* TUF12250
17 22 29 38
TUDF1212 TUDF1210 TUDF12316 TUDF12250
19 25 33 44
14”
12 Ga . 10 Ga . 3/16” 1/4”
15” 9-1/4” 2”
19-1/4” 19-1/4” 19-3/8” 19-1/2”
2-1/8”
7/8” 7/8”
1-5/8” 1-3/4”
19-1/4”
TUA1412* TUA1410 TUA14316 TUA14250
23 30 39 52
TUF1412 TUF1410
TUF14316* TUF14250
19 25 33 44
TUDF1412 TUDF1410 TUDF14316 TUDF14250
21 28 37 50
16”
12 Ga . 10 Ga . 3/16” 1/4”
17” 10-5/8” 2”
21-1/4” 21-1/4” 21-3/8” 21-1/2”
2-1/8”
7/8” 7/8”
1-5/8” 1-3/4”
21-1/4”
TUA1612* TUA1610 TUA16316 TUA16250
26 33 43 57
TUF1612 TUF1610
TUF16316* TUF16250
22 28 37 49
TUDF1612 TUDF1610 TUDF16316 TUDF16250
24 31 41 55
18”10 Ga . 3/16” 1/4”
19” 12-1/8” 2-1/2”24-1/4” 24-3/8” 24-1/2”
2-5/8”7/8”
1-5/8” 1-3/4”
24-1/4”TUA1810* TUA18316 TUA18250
38 50 65
TUF1810 TUF18316 TUF18250
32 42 55
TUDF1810 TUDF18316 TUDF18250
35 46 61
20” 3/16” 1/4” 21” 13-1/2” 2-1/2” 26-1/2”
26-1/2” 2-5/8” 1-5/8” 1-3/4” 26-1/4” TUA20316*
TUA2025054 71
TUF20316 TUF20250
46 61
TUDF20316 TUDF20250
50 67
24” 3/16” 1/4” 25” 16-1/2” 2-1/2” 30-3/8”
30-1/2” 2-5/8” 1-5/8” 1-3/4” 30-1/4” TUA24316*
TUA2425063 83
TUF24316 TUF24250
55 73
TUDF24316 TUDF24250
59 79
30” 3/8” 1/2” 31” 19-1/2” 3” 37-3/4”
38”3-1/8”
X1-3/4”
X37-1/4”
XTUA30375 TUA30500
148 198
TUF30375 X
134 X
TUDF30375 X
142 X
36” 3/8” 1/2” 37” 22-1/2” 3” 43-3/4”
44”3-1/2”
X1-3/4”
X44” X
TUA36375 TUA36500
170 227
TUF36375 X
156 X
TUDF36375 X
164 X
* KWS Stock Component (In Carbon Steel only)
T
4
8 )
l e
i w
/ /
gring
KW
R
E B
AC
D
B
c
c m
g
AC OR
AC
D
B
U
r n
PREL INAR
R P Z
07-16-2 5
GA
B
E F
1/2 A
57
Screw Conveyor Component Guide
U-TROUghs
fOrMED ChaNNEl DrOP BOTTOM JaCKETED
Screw Dia .
Trough Thk .
A B C D
Formed Chanel Trough Drop Bottom Trough Jacketed Trough
Part Number
Wt . Per ft . (Lbs .)
Part Number
Wt . Per ft
(Lbs.) †
Part Number
Wt . Per ft . (Lbs.)•
4” NOT AVAILABLE
6”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
7” 4-1/2” 1-1/4”
9-3/4” 9-3/4” 9-3/4” 9-7/8”
10”
TUFC614 TUFC612 TUFC610
TUFC6316 TUFC6250
9 12 16 20 26
TUDB614 TUDB612 TUDB610
TUDB6316 TUDB6250
14 16 19 23 29
X X
9”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
10” 6-1/8” 1-1/2”
13-1/4” 13-1/4” 13-1/4” 13-3/8” 13-1/2”
TUFC914 TUFC912 TUFC910
TUFC9316 TUFC9250
12 16 20 26 30
TUDB914 TUDB912 TUDB910
TUDB9316 TUDB9250
18 22 27 33 39
TUF914J TUF912J TUF910J
TUF9316J TUF9250J
19 25 33 43 62
12”
12 Ga . 10 Ga . 3/16” 1/4”
13” 7-3/4” 2”
17-1/4” 17-1/4” 17-3/8” 17-1/2”
TUFC1212 TUFC1210
TUFC12316 TUFC12250
20 26 35 46
TUDB1212 TUDB1210
TUDB12316 TUDB12250
31 28 45 56
TUF1212J TUF1210J
TUF12316J TUF12250J
32 41 54 72
14”
12 Ga . 10 Ga . 3/16” 1/4”
15” 9-1/4” 2”
19-1/4” 19-1/4” 19-3/8” 19-1/2”
TUFC1412 TUFC1410
TUFC14316 TUFC14250
22 29 39 51
TUDB1412 TUDB1410
TUDB14316 TUDB14250
33 40 49 62
TUF1412J TUF1410J
TUF14316J TUF14250J
36 47 61 82
16”
12 Ga . 10 Ga . 3/16” 1/4”
17” 10-5/8” 2”
21-1/4” 21-1/4” 21-3/8” 21-1/2”
TUFC1612 TUFC1610
TUFC16316 TUFC16250
25 32 50 56
TUDB1612 TUDB1610
TUDB16316 TUDB16250
36 43 53 67
TUF1612J TUF1610J
TUF16316J TUF16250J
41 52 69 91
18”10 Ga . 3/16” 1/4”
19” 12-1/8” 2-1/2”24-1/4” 24-3/8” 24-1/2”
TUFC1810 TUFC18316 TUFC18250
37 49 64
TUDB1810 TUDB18316 TUDB18250
43 65 80
TUF1810J TUF18316J TUF18250J
58 77
102
20” 3/16” 1/4” 21” 13-1/2” 2-1/2” 26-1/2”
26-1/2”TUFC20316 TUFC20250
53 70
TUDB20316 TUDB20250
69 86
TUF20316J TUF20250J
84 112
24” 3/16” 1/4” 25” 16-1/2” 2-1/2” 30-3/8”
30-1/2”TUFC24316 TUFC24250
63 82
TUDB24316 TUDB24250
78 98
TUF24316J TUF24250J
100 133
30” 3/8” 1/2” 31” 19-1/2” 3” 37-3/4”
38”TUFC30375
X151
XTUDB30375 TUDB30500
163 238
TUF30375J X
241 X
36” 3/8” 1/2” 37” 22-1/2” 3” 43-3/4”
44”TUFC36375
X173
XTUDB36375 TUDB36500
185 260
TUA36375J X
281 X
† Weights do not include clamps • Weights do not include couplings
SH
4 ON R D
o ( 7 2 2x 7) 4 7 8
E N 6
g
DIMENSIONS O BE E CON RAC OR
D
C
B
A
US R
e 8 ( )
E O
l e @
s w
gr ng
W
[
ENS Y C
D
B
AC
U TO E
v n n
O R V V P R P
OT D
__ _ DA E _ ___ _
07-16-
D
CA
2"B
58
Screw Conveyor Component Guide
flaRed TROUghs
Screw Dia . Trough Thk . A B C D E Part NumberWeight Per
Foot (Lbs .)
4” NOT AVAILABLE
6”
14 Ga . 12 Ga . 3/16” 1/4”
14” 7” 1-1/4”
16-5/8” 16-5/8” 16-3/4” 16-7/8”
3-1/2”
TFLF614 TFLF612
TFLF6316 TFLF6250
5 8 11 15
9”
12 Ga . 10 Ga . 3/16” 1/4”
18” 9” 1-1/2”
21-1/4” 21-1/4” 21-3/8” 21-1/2”
5”
TFLF912 TFLF910
TFLF9316 TFLF9250
10 18 23 37
12”
12 Ga . 10 Ga . 3/16” 1/4”
22” 10” 2”
26-1/4” 26-1/4” 26-3/8” 26-3/8”
6-1/2”
TFLF1212 TFLF1210
TFLF12316 TFLF12250
17 22 30 41
14”
12 Ga . 10 Ga . 3/16” 1/4”
24” 11” 2”
28-1/4” 28-1/4” 28-3/8” 28-3/8”
7-1/2”
TFLF1412 TFLF1410
TFLF14316 TFLF14250
19 24 33 45
16”
12 Ga . 10 Ga . 3/16” 1/4”
28” 11-1/2” 2”
32-1/4” 32-1/4” 32-3/8” 32-1/2”
8-1/2”
TFLF1612 TFLF1610
TFLF16316 TFLF16250
20 26 36 48
18”10 Ga . 3/16” 1/4”
31” 12-1/8” 2-1/2”36-1/4” 36-3/8” 36-1/2”
9-1/2”TFLF1810
TFLF18316 TFLF18250
30 40 53
20” 3/16” 1/4” 34” 13-1/2” 2-1/2” 39-3/8”
39-1/2” 10-1/2” TFLF20316 TFLF20250
43 58
24” 3/16” 1/4” 40” 16-1/2” 2-1/2” 45-3/8”
45-1/2” 12-1/2” TFLF24316 TFLF24250
51 68
30” 3/8” 1/2” 48” 19-1/2” 3” 55”
55-3/8” 15-1/2” TFLF30375 TFLF30500
13 184
36” 3/8” 1/2” 54” 22-1/2” 3” 61-1/8”
61-1/2” 18-1/2” TFLF36375 TFLF36500
15 213
D
CA
B
E
59
Screw Conveyor Component Guide
TUbUlaR TROUghs
NON-SPlIT SPlIT
Screw Dia .
Trough Thk .
A (Dia .)
B C
Non-Split Split
Part NumberWt Per
Foot (Lbs .)
Part NumberWt . Per
Foot (Lbs .)
4”14 Ga . 12 Ga . 10 Ga .
5” • 1” 7-1/4N/A
TT412-DS N/A
X 7 X
TTF414 TTF412 TTF410
5 7 9
6”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
7” • 1-1/4”
9-3/4” 9-3/4” 9-3/4” 9-7/8”
10”
TT614-DS TT612-DS
N/A N/A N/A
7 9 X X X
TTF614 TTF612 TTF610
TTF6316 TTF6250
8 10 13 18 26
9”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
10” • 1-7/16”
13-3/8” 13-3/8” 13-3/8” 13-3/8” 13-1/2”
N/A TT912-DS TT910-DS
TT9316-DS TT9250-DS
X 13 17 22 30
TTF914 TTF912 TTF910
TTF9316 TTF9250
11 15 19 25 34
12”12 Ga . 10 Ga . 3/16” 1/4”
13” 2”17-1/4” 17-1/4” 17-3/8” 17-3/8”
TT1212 TT1210
TT12316 TT12250
16 21 28 37
TTF1212 TTF1210
TTF12316 TTF12250
20 25 33 45
14”12 Ga . 10 Ga . 3/16” 1/4”
15” 2”19-1/4” 19-1/4” 19-3/8” 19-1/2”
TT1412 TT1410
TT14316 TT14250
19 24 32 43
TTF1412 TTF1410
TTF14316 TTF14250
22 29 38 50
16”12 Ga . 10 Ga . 3/16” 1/4”
17” 2”21-1/4” 21-1/4” 21-3/8” 21-1/2”
TT1612 TT1610
TT16316 TT16250
21 28 37 49
TTF1612 TTF1610
TTF16316 TTF16250
25 32 42 56
18”10 Ga . 3/16” 1/4”
19” 2-1/2”24-1/4” 24-1/2” 24-1/2”
TT1810 TT18316 TT18250
31 41 55
TTF1810 TTF18316 TTF18250
36 48 64
20” 3/16” 1/4” 21” 2-1/2” 26-3/8”
26-1/2”TT20316 TT20250
46 61
TTF20316 TTF20250
53 70
24” 3/16” 1/4” 25” 2-1/2” 30-3/8”
30-1/2”TT24316 TT24250
54 73
TTF24316 TTF24250
62 82
30” 3/8” 1/2” 31” 3” 37-3/4”
38”TT30375 TT30500
136 188
TTF30375 TTF30500
153 210
36” 3/8” 1/2” 37” 3” 43-3/4”
44”TT36375 TT36500
163 224
TTF36375 TTF36500
180 245
• Down Spouting Used for Non-Split 4, 6, and 9 inch: ”A” Dimension Becomes OD and not ID
3
B
W
n y Y
PROV
R
e i ng
07
N T B V R I N RACTOR
A
1/2 A
B
DVED AS NO D ND
B __ _ DA E __ _
07
A
C
B
60
Screw Conveyor Component Guide
ReCTangUlaR TROUghs
aNGlE flaNGE fOrMED flaNGE DOUBlE aNGlE fOrMED ChaNNEl
Screw Dia .
Trough Thk
A B C DAngle Flanged Formed Flanged Double Angle Formed ChannelPart
NumberWt ./Ft . (Lbs .)
Part Number
Wt ./Ft . (Lbs .)
Part Number
Wt ./Ft . (Lbs .)
Part Number
Wt /Ft (Lbs )
4” NOT AVAILABLE
6”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
7” 4-1/2” 1-1/4”
9-3/4” 9-3/4” 9-3/4” 9-7/8”
10”
TRA614 TRA612 TRA610
TRA6316 TRA6250
8 11 14 19 25
TRF614 TRF612 TRF610
TRF6316 TRF6250
8 11 14 19 25
TRDA614 TRDA612 TRDA610
TRDA6316 TRDA6250
9 12 16 21 28
TRFC614 TRFC612 TRFC610
TRFC6316 TRFC6250
8 11 14 19 25
9”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
10” 6-1/8” 1-1/2”
13-1/4” 13-1/4” 13-1/4” 13-3/8” 13-1/2”
TRA914 TRA912 TRA910
TRA9316 TRA9250
11 15 19 26 34
TRF914 TRF912 TRF910
TRF9316 TRF9250
11 15 19 26 34
TRDA914 TRDA912 TRDA910
TRDA9316 TRDA9250
12 17 22 29 38
TRFC914 TRFC912 TRFC910
TRFC9316 TRFC9250
11 15 19 26 35
12”12 Ga . 10 Ga . 3/16” 1/4”
13” 7-3/4” 2”17-1/4” 17-1/4” 17-3/8” 17-1/2”
TRA1212 TRA1210
TRA12316 TRA12250
19 25 31 44
TRF1212 TRF1210
TRF12316 TRF12250
19 25 31 44
TRDA1212 TRDA1210
TRDA12316 TRDA12250
22 28 38 50
TRFC1212 TRFC1210
TRFC12316 TRFC12250
19 25 34 45
14”12 Ga . 10 Ga . 3/16” 1/4”
15” 9-1/4” 2”19-1/4” 19-1/4” 19-3/8” 19-1/2”
TRA1412 TRA1410
TRA14316 TRA14250
22 29 38 51
TRF1412 TRF1410
TRF14316 TRF14250
22 29 38 51
TRDA1412 TRDA1410
TRDA14316 TRDA14250
24 32 42 56
TRFC1412 TRFC1410
TRFC14316 TRFC14250
22 29 39 52
16”12 Ga . 10 Ga . 3/16” 1/4”
17” 10-5/8” 2”21-1/4” 21-1/4” 21-3/8” 21-1/2”
TRA1612 TRA1610
TRA16316 TRA16250
25 32 42 57
TRF1612 TRF1610
TRF16316 TRF16250
25 32 42 57
TRDA1612 TRDA1610
TRDA16316 TRDA16250
27 35 37 50
TRFC1612 TRFC1610
TRFC16316 TRFC16250
25 33 44 58
18”10 Ga . 3/16” 1/4”
19” 12-1/8” 2-1/2”24-1/4” 24-3/8” 24-1/2”
TRA1810 TRA18316 TRA18250
37 49 65
TRF1810 TRF18316 TRF18250
37 49 65
TRDA1810 TRDA18316 TRDA18250
40 54 72
TRFC1810 TRFC18316 TRFC18250
37 49 66
20” 3/16” 1/4” 21” 13-1/2” 2-1/2” 26-3/8”
26-1/2”TRA20316 TRA20250
54 72
TRF20316 TRF20250
53 71
TRDA20316 TRDA20250
59 78
TRFC20316 TRFC20250
54 73
24” 3/16” 1/4” 25” 16-1/2” 2-1/2” 30-3/8”
30-1/2”TRA24316 TRA24250
63 85
TRF24316 TRF24250
63 84
TRDA24316 TRDA24250
69 91
TRFC24316 TRFC24250
65 86
30” 3/8” 31” 19-1/2” 3” 37-3/4” TRA30375 154 TRF30375 153 TRDA30375 166 TRFC30375 15736” 3/8” 37” 22-1/2” 3” 43-3/4” TRA36375 180 TRF36375 178 TRDA36375 192 TRFC36375 183
e 8 7 2 4 -8
i s k
Y
s e
8/ 1n e RO
B V
DD N T D
_ __ngur ng
W
]
AC
D
B
1/2 A
W w nv y u d
AP L
V V R R R R P R R R R B
E I E NE B I
E _ _ _ ____ __ __ _
7 6 20 5
AC
D
B
1/2 A
N E A E
U NR A N
TE
RARE E
MA
7
m
u Y d
g P
R P B
M T
_ _ _ _ _ _ _
s n
ct
S M UR N O D
E
2 15
AC
D
B
1/2 A
C E /
Q T =1 0R NA A G
T K SA E=
A T C SR E ENCE
3 CO V VE
2 5-
B ES N X 76 8
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8/2 1
WS A U A U NG O D
xx
/ N OX
) C A II E E S O ( B/C O I N M M T
R IT ( C T _ T R B H N K
E H M V Y R R V N D _ ON I
1) S B O R R WI - A A T S A
) _ H R T R - A MO C
_ _ R AS I Y DRIVE MO TE @ O
AC
D
B
1/2 A
61
Screw Conveyor Component Guide
plaTe end flanges
Plate end flanges are continuously welded to the ends of each trough section and used to connect
trough sections together. Bolts are located external to the trough for ease of access. Plate end
flanges are CNC cut and jig-welded to ensure exact alignment with other adjacent sections.
NOMENClaTUrE
P E F 1 2 U M S 3
PEF = Plate End Flange
ShapeU = U-TroughF = FlaredT = TubularR = Rectangular
U-TrOUGh PlaTE
END flaNGE
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
U-TrOUGh / rECTaNGUlar
flUSh END PlaTE
END flaNGE
flarED TrOUGh
PlaTE END flaNGE
rECTaNGUlar TrOUGh
PlaTE END flaNGE
TUBUlar TrOUGh
PlaTE END flaNGE
Thickness10 = Fits troughs up to 10Ga thick3 = Fits troughs up to 1/4” thick
MaterialMS = Mild Steel
SS = Stainless Steel
62
Screw Conveyor Component Guide
U–TROUgh plaTe end flanges
6 BOlT flaNGE 8 BOlT flaNGE
10 BOlT flaNGE
Screw Dia .
Bolts A B C
Thk . D E F G H J Part Number
Weight (Lbs .)Dia . Qty .
4” 3/8” 6 3-5/8” 3-1/2” 3/16” 1-1/8” 3-1/8” 3 1/8” 1-9/16” X X PEF4U•#* 1
6” 3/8” 6 4-1/2” 4-7/16” 3/16” 1-1/32” 4-1/8” 4-1/16” 2” X X PEF6U•#* 2
9” 3/8” 8 6-1/8” 6-1/4” 1/4” 1-3/16” 4-1/8” 4-1/8” 3-3/4” 2-9/16” X PEF9U•#* 4
12” 1/2” 8 7-3/4” 7-15/16” 1/4” 1-1/2” 5-5/16” 5-3/16” 4-1/16” 3-7/8” X PEF12U•#* 6
14” 1/2” 8 9-1/4” 8-15/16” 1/4” 2-1/2” 5-5/8” 5-15/16” 5-15/16” 3” X PEF14U•#* 7
16” 5/8” 8 10-5/8” 10” 1/4” 2-5/8” 6-3/8” 6-5/8” 6-5/8” 3-3/4” 2-15/16” PEF16U•#* 8
18” 5/8” 10 12-1/8” 11” 1/4” 2-11/16” 5-15/16” 5-7/8” 5-7/8” 5-7/8” 2-11/32” PEF18U•#* 11
20” 5/8” 10 13-1/2” 12-3/16” 1/4” 2-3/4” 6-1/4” 6-11/16” 6-11/16” 6-11/16” 3-3/8” PEF20U•#* 12
* KWS Stock Component (Only Mild Steel) # = Thickness: 10 = Fits troughs up to 10Ga thick, 3 = Fits troughs up to 1/4” thick • Material Type; MS = Mild Steel, SS = Stainless Steel
n 8 7
E
AW N I N S E
2 2R 1 OA E
R R
r
F
B
H
G
F
E
D
J
A
TROUGH THK.
BOLTS
E ISE D
RES M
H
G
F
D
E A
B TROUGH THK.
BOLTS
BD
E
F
G
A
TROUGH THK.
BOLTS
x (
m m
C H KE B
We
E g n eM nufa
FER B.O T OF
OW
GA
IG
12
C
63
Screw Conveyor Component Guide
A
TROUGH THK.D
E
F
G
H
J
KL
M
B
BOLTS
A
TROUGH THK.
D
E
F
JK
L
B
BOLTS
G
H
KJ
H
F
E
D
A
B TROUGH THK.
BOLTS
G
C
U–TROUgh plaTe end flanges
12 BOlT flaNGE 14 BOlT flaNGE
16 BOlT flaNGE
Screw Dia .
Bolts A B C
Thk . D E F G H J K L M Part Number
Weight (Lbs .)Dia . Qty .
24” 5/8” 12 16-1/2” 14-1/4” 1/4” 2-5/8” 6-1/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 3-5/16” X X PEF24U•#* 14
30” 5/8” 14 19-1/2” 17-1/2” 3/8” 3-3/4” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 3-5/16” X PEF30U•# 21
36” 5/8” 16 22-1/2” 20-1/8” 3/8” 4-5/16” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 6-5/8” 3-5/16” PEF36U•# 25
* KWS Stock Component (Only Mild Steel) # = Thickness: 10 = Fits troughs up to 10Ga thick, 3 = Fits troughs up to 1/4” thick • Material Type; MS = Mild Steel, SS = Stainless Steel
64
Screw Conveyor Component Guide
F
G
H
J
A
K
E
B
C TROUGH THK.
BOLTS
C
J
H
G
F
E
B
A
TROUGH THK.
BOLTS
F
G
E
H
B
C
A
TROUGH THK.
BOLTS
UGH H D
TS
flaRed TROUgh plaTe end flanges
6 BOlT flaNGE 8 BOlT flaNGE
10 BOlT flaNGE
Screw Dia .
Bolts A B C D
Thk . E F G H J K Part Number
Weight (Lbs .)Dia . Qty .
4” NOT AVAILABLE6” 3/8” 6 4-7/16” 7” 7-3/16” 3/16” 1-27/32” 5-1/4” 5-1/4” 2-1/32” X X PEF6F• 39” 3/8” 8 6-1/4” 9” 9-11/16” 1/4” 1-3/4” 5” 5” 5” 2-9/16” X PEF9F• 512” 1/2” 8 7-15/16” 10” 11-13/16” 1/4” 1-13/16” 5-3/4” 5-3/4” 5-3/4” 3-7/8” X PEF12F• 714” 1/2” 10 8-15/16” 11” 12-3/4” 1/4” 2-1/16” 5-1/8” 5-1/8” 5-1/8” 5-1/8” 3” PEF14F• 816” 5/8” 10 10” 11-1/2” 14-11/16” 1/4” 2-1/4” 5-1/2” 5-1/2” 5-1/2” 5-1/2” 3-3/4” PEF16F• 818” 5/8” 10 11” 12-1/8” 16” 1/4” 2-5/8” 6-3/16” 6-3/16” 6-3/16 6-3/16” 2-15/16” PEF18F• 1120” 5/8” 10 12-3/16” 13-1/2” 17-7/8” 1/4” 2-5/16” 7” 7” 7”” 7” 3-11/32” PEF20F• 12
• Material Type; MS = Mild Steel, SS = Stainless Steel
65
Screw Conveyor Component Guide
flaRed TROUgh plaTe end flanges
Screw Dia .
Bolts A B C D
Thk . E F G H J K L M N Part Number
Weight (Lbs .)Dia . Qty .
24” 5/8” 12 14-1/4” 16-1/2” 20-15/16” 1/4” 2-5/16” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 3-5/16” X X PEF24F• 15
30” 5/8” 14 17-1/2” 19-1/2” 24-13/16” 3/8” 3-1/2” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 3-1/2” X PEF30F• 20
36” 5/8” 16 20-1/2” 22-1/2” 27-15/16” 3/8” 3-1/2” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 6-7/8” 4-1/4 PEF36F• 23
• Material Type; MS = Mild Steel, SS = Stainless Steel
A
BOLTSN
ML
K
J
H
C
G
E
BF
TROUGH THK.
A
BOLTS
ML
K
J
H
G
C
F
E
B
TROUGH THK.
A
LK
J
H
G
E
F
C
B
TROUGH THK.
BOLTS
THK D
12 BOlT flaNGE 14 BOlT flaNGE
16 BOlT flaNGE
66
Screw Conveyor Component Guide
TUbUlaR TROUgh plaTe end flanges
Screw Dia . Bolts A
Dia . B
Dia . C
Thk .D
AngleE
AnglePart
NumberWeight (Lbs .)Dia . Qty .
4” 3/8” 6 7-3/4” 7” 3/16” 30° 60° PEF4T• 26” 3/8” 6 9-3/4” 8-7/8” 3/16” 30° 60° PEF6T• 29” 3/8” 8 13-3/4” 12-1/2” 1/4” 22 .5° 45° PEF9T• 512” 1/2” 8 17-1/4” 15-7/8” 1/4” 22 .5° 45° PEF12T• 814” 1/2” 8 19-1/4” 17-7/8” 1/4” 22 .5° 45° PEF14T• 816” 5/8” 8 21-1/4” 20” 1/4” 22 .5° 45° PEF16T• 918” 5/8” 10 24-1/4” 22” 1/4” 18° 36° PEF18T• 1320” 5/8” 10 26-1/4” 24-3/8” 1/4” 18° 36° PEF20T• 14
• Material Type; MS = Mild Steel, SS = Stainless Steel
6 BOlT flaNGE 8 BOlT flaNGE
10 BOlT flaNGE
om
DATE DES G
3
R R
ng
G S
BOLTS
AB
DE
BOLTS
A
E
B
D
BOLTS
AB
D
E
es@
D W G NOCRE H K BY
TE SE
n f
N N
G T
1 3
C
67
Screw Conveyor Component Guide
TUbUlaR TROUgh plaTe end flanges
Screw Dia . Bolts A
Dia B
Dia . C
Thk .D
AngleE
Angle Part Number Weight (Lbs .)Dia Qty
24” 5/8” 12 30-1/4” 28-1/2” 1/4” 15° 30° PEF24T• 17
30” 5/8” 14 37” 34-1/2” 3/8” 13° 26° PEF30T• 22
36” 5/8” 16 44” 41” 3/8” 11.5° 23° PEF36T• 31
• Material Type; MS = Mild Steel, SS = Stainless Steel
12 BOlT flaNGE 14 BOlT flaNGE
16 BOlT flaNGE
TOTO E
2
s .com
E
NG C LT
*
A
B
DE
BOLTS
_ _
AB
E
D
BOLTS
BOLTSN O
A
B
DE
E
DRA NG CHECKED ER
END LANG P T R
- EASE
P B R
M
EN ND
SPL H L
/
C
68
Screw Conveyor Component Guide
ReCTangUlaR plaTe end flanges
Screw Dia .
Bolts A B C
Thick D E F G H J Part Number
Weight (Lbs .)Dia Qty .
4” NOT AVAILABLE
6” 3/8” 6 4-9/16” 4-1/2” 3/16” 1-1/16” 4-1/8” 3-3/4” 2-1/32” X X PEF6R• 3
9” 3/8” 8 6-1/4” 6-1/8” 1/4” 1-3/16” 5-1/4” 5-15/16” 3-11/16” 2-9/16” X PEF9R• 4
12” 1/2” 10 7-15/16” 7-3/4” 1/4” 1-11/16” 5” 4” 5” 4-1/16” 3-7/8” PEF12R• 7
14” 1/2” 10 8-15/16” 9-1/4” 1/4” 2-7/16” 5-1/4” 5-1/4” 5-1/4” 5-15/16” 3 PEF14R• 8
16” 5/8” 10 10” 10-5/8” 1/4” 2-5/8” 6” 6” 6” 6-1/4” 3-3/4” PEF16R• 9
• Material Type; MS = Mild Steel, SS = Stainless Steel
6 BOlT flaNGE 8 BOlT flaNGE
10 BOlT flaNGE
( (
sale
s
E
snga
G A.
TAN
17/
B
TROUGH THK.AD
E
F
G
H J BOLTS
BOLTS
B
A
G H
F
E
D
TROUGH THK.
CU
B PR R R Z
B
TROUGH THK.A
D
E
F
G BOLTS
\H O FI S F T L R 6 B T .
6 D X GA HO -SP TUBUL
C
O T
69
Screw Conveyor Component Guide
ReCTangUlaR plaTe end flanges
Screw Dia .
Bolts A B C
Thk . D E F G H J K L M N Part Number
Weight (Lbs .)Dia . Qty .
18” 5/8” 12 11” 12-1/8” 1/4” 2-1/8” 7” 7” 7 4” 4-1/16” 2-15/16” X X X PEF18R• 13
20” 5/8” 14 12-3/16” 13-1/2” 1/4” 2-11/16” 5-3/4” 5-3/4” 5-3/4 5-3/4 4-27/32” 4” 3-11/32” X X PEF20R• 21
24” 5/8” 14 14-1/4” 16-1/2” 1/4” 2-3/4” 7” 7” 7” 7” 5-1/2” 5-7/16” 3-5/16” X X PEF24R• 30
30” 5/8” 16 18” 19-1/2” 3/8” 2-15/16” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 4-1/2” X PEF30R• 36
36” 5/8” 18 21” 22-1/2” 3/8” 3” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 6-3/4” 7” 7” 7” PEF36R• 44
• Material Type; MS = Mild Steel, SS = Stainless Steel
12 BOlT flaNGE 14 BOlT flaNGE
16 BOlT flaNGE
USTOM
D I
2 7
028
G EA O
E GU R ATTE
7P. .
A R R R B
_
D
O T
C
5 R H
( 1 6 AC
DEN D T
ALL DIM S O TO BE ER FIB RAC R
B
TROUGH THK.AD
E
F
G
H
J
K L M BOLTS
TROUGH THK.D
B
BOLTS
A
LK
E
F
G
H
J
BOLTS
B
D
E
F
G
J K
TROUGH THK.A
H
ND FL NGES DIMS\TUBU AR B PA ERN .i w
V P B P P P R P R B R
C
ST M
O L
ROV
7 29-20
B
AD
E
F
G
H
J
K
L M N
TROUGH THK.
BOLTS
18 BOlT flaNGE
70
Screw Conveyor Component Guide
U–TROUgh and ReCTangUlaR flUsh end plaTe end flange
Screw Dia .
Bolts A B C
Thk . D E F G H J K Part Number Weight (Lbs .)Dia . Qty .
4” 3/8” 6 3-5/8” 3-3/8” 3/16” 1-1/4” 2-1/2” 2-1/2” X X X X PEF4@•FE 26” 3/8” 6 4-1/2” 4-7/16” 3/16” 1-1/16” 3-5/8” 3-5/8” X X X X PEF6@•FE 29” 3/8” 8 6-1/8” 6 1/4” 1/4” 1-3/16” 3-5/8” 3-5/8” 3-5/8” X X X PEF9@•FE 3
12” 1/2” 8 7-3/4” 7-15/16” 1/4” 1-1/2” 4-5/8” 4-5/8” 4-5/8” X X X PEF12@•FE 514” 1/2” 8 9-1/4” 8-15/16” 1/4” 2-1/2” 4-3/4” 4-3/4” 4-3/4” X X X PEF14@•FE 616” 5/8” 8 10-5/8” 10” 1/4” 2-5/8” 5-1/2” 5-1/2” 5-1/2” X X X PEF16@•FE 618” 5/8” 10 12-1/8” 11” 1/4” 2-11/16” 4-13/16” 4-13/16” 4-13/16” 4-13/16” X X PEF18@•FE 920” 5/8” 10 13-1/2” 12-3/16” 3/8” 2-27/32” 5-5/16” 5-5/16” 5-5/16” 5-5/16” X X PEF20@•FE 1424” 5/8” 12 16-1/2” 14-1/4” 3/8” 2-3/4” 5-1/4” 5-1/4” 5-1/4” 5-1/4” 5-1/4” X PEF24@•FE 1830” 5/8” 12 19-1/2” 17-1/2” 3/8” 2-1/2” 6-1/4” 6-1/4” 6-1/4” 6-1/4” 6-1/4” X PEF30@•FE 2736” 5/8” 14 22-1/2” 20-1/2” 3/8” 2-1/2” 6-1/4” 6-1/4” 6-1/4” 6-1/4” 6-1/4” 6-1/4” PEF36@•FE 32
• Material Type; MS = Mild Steel, SS = Stainless Steel @ = U for U-Trough or R for Rectangular Note: 14 Bolt Pattern Not Shown
6 BOlT flaNGE 8 BOlT flaNGE
10 BOlT flaNGE
5 8
7
AT ES DIM U- RECT GULAR ATTE N. w
2 0J
R R R P R R
er
RI RD
S P O S G
0 O
0 5
FE T9 X GA 1 DI X - OU H
D
A
TROUGH THK.
BOLTS
E
F
G
H
B
A
D
E
F
G
B
BOLTS
TROUGH THK.
F US
TROUGH THK.D
E
F
A
B
BOLTS
ND FL NGES D MS\TUBU R B PA ERN .i w
V B P P P R P R B R
C
B
T \ S W o in e CO ATE LU GU T R i
FU REL S
9
D
A
B
E
F
G
H
J
BOLTS
TROUGH THK.
12 BOlT flaNGE
71
Screw Conveyor Component Guide
disChaRge spOUTs
Discharge spouts are typically located at one end of a screw conveyor on the bottom of the trough.
Bulk materials exit a screw conveyor through the discharge spout. Multiple discharge spouts with
slide gates can be used to distribute bulk materials to various downstream processes. Slide gates
should not be used on the final discharge of a screw conveyor because if the slide gate is closed, bulk
materials will be compressed against the trough end and cause damage to the screw conveyor.
STaNDarD
Standard discharge spouts are continuously welded to the
bottom of a U-trough or tubular housing and can be located
anywhere along the length of a screw conveyor. A minimum
distance is required for the final discharge spout to allow for
welding of the plate end flange and discharge spout.
flUSh END
Flush end discharge spouts are continuously welded
to the end of a U-trough or tubular housing in order to
maximize the length of the trough. A special flush end
trough end is required with a flush end discharge. The
discharge is considered ”flush” with the trough end.
haND SlIDE
A hand slide gate is the simplest form of slide gate and
utilizes a slide plate, spacer and retainer flange bolted to
a standard discharge spout.
OPEN END
Open end discharge spouts utilize a hanger, hanger
bearing and end shaft to allow bulk materials to
discharge out the end of a screw conveyor. Open end
discharges allow for maximum conveying distance over
the length of the trough.
NOMENClaTUrE
D S P 1 2 3 1 6 T F E
DSP = Discharge Spout
ShapeBlank = U-TroughT = TubularF = FlaredR = Rectangular
Discharge Thickness14 = 14GA 250 = 1/4”12 = 12GA 375 = 3/8”10 = 10GA 500 = 1/2”316 = 3/16”
Discharge StyleBlank = Plain (Fixed)HS = Hand SlideFE = Flush End Formed TroughFEA = Flush End Angled Trough
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
72
Screw Conveyor Component Guide
disChaRges
STaNDarD
WITh haND SlIDE
flUSh END
Screw Dia . Thk . A B
Min . C D E FStandard With Hand Slide Flush End
Part Number Weight (Lbs ) Part Number Wt . Part Number Weight
(Lbs .) .
4”14 Ga . 12 Ga . 10 Ga .
5” 4-1/2” 3-3/4” 5/16” 5-5/8” 11”DSP414# DSP412#* DSP410#
2 3 4
DSP414#HS DSP412#HS DSP410#HS
5 6 6
DSP414#FE DSP412#FE DSP410#FE
2 2 3
6”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
7” 6” 5” 5/16” 6-5/8” 14”
DSP614# DSP612#* DSP610# DSP6316# DSP6250#
4 5 7 8 10
DSP614#HS DSP612#HS DSP610#HS DSP6316#HS DSP6250#HS
8 9 1 12 14
DSP614#FE DSP612#FE DSP610#FE DSP6316#FE DSP6250#FE
3 4 5 6 8
9”
14 Ga . 12 Ga . 10 Ga . 3/16” 1/4”
10” 8” 7-1/8” 5/16” 8” 19”
DSP914# DSP912# DSP910#* DSP9316# DSP9250#
7 10 12 16 20
DSP914#HS DSP912#HS DSP910#HS DSP9316#HS DSP9250#HS
15 17 20 23 28
DSP914#FE DSP912#FE DSP910#FE DSP9316#FE DSP9250#FE
5 7 9
12 15
12”
12 Ga . 10 Ga . 3/16” 1/4”
13” 10-1/2” 8-7/8” 5/16” 10-1/8” 24”
DSP1212# DSP1210#* DSP12316# DSP12250#
16 20 26 33
DSP1212#HS DSP1210#HS DSP12316#HS DSP12250#HS
29 33 39 46
DSP1212#FE DSP1210#FE DSP12316#FE DSP12250#FE
12 15 20 24
14”
12 Ga . 10 Ga . 3/16” 1/4”
15” 11-1/2” 10-1/8” 5/16” 11-1/4” 27”
DSP1412# DSP1410#* DSP14316# DSP14250#
20 26 32 41
DSP1412#HS DSP1410#HS DSP14316#HS DSP14250#HS
41 47 54 63
DSP1412#FE DSP1410#FE DSP14316#FE DSP14250#FE
15 19 24 31
16”
12 Ga . 10 Ga . 3/16” 1/4”
17” 13-1/2” 11-1/8” 5/16” 12-3/8” 30”
DSP1612# DSP1610#
DSP16316#* DSP16250#
23 30 38 50
DSP1612#HS DSP1610#HS DSP16316#HS DSP16250#HS
45 52 60 72
DSP1612#FE DSP1610#FE DSP16316#FE DSP16250#FE
17 23 29 38
18”10 Ga . 3/16” 1/4”
19” 14-1/2” 12-3/8” 5/16” 13-3/8” 33”DSP1810#
DSP18316#* DSP18250#
39 50 64
DSP1810#HS DSP18316#HS DSP18250#HS
5 76 90
DSP1810#FE DSP18316#FE DSP18250#FE
29 38 48
20” 3/16” 1/4” 21” 15-1/2” 13-3/8” 3/8” 14-3/8” 36” DSP20316#*
DSP20250#58 75
DSP20316#HS DSP20250#HS
89 106
DSP20316#FE DSP20250#FE
43 56
24” 3/16” 1/4” 25” 17-1/2” 15-3/8” 3/8” 16-3/8” 42” DSP24316#*
DSP24250#75 97
DSP24316#HS DSP24250#HS
117 139
DSP24316#FE DSP24250#FE
56 72
30” 3/8” 1/2” 31” 20-1/2” 18-3/8” 1/2” 18-3/8” 48” DSP30375#
DSP30500#194 259
DSP30375#HS DSP30500#HS
253 318
DSP30375#FE DSP30500#FE
146 194
36” 3/8” 1/2” 37” 23-1/2” 21-3/8” 1/2” 20-3/8” 54” DSP36375#
DSP36500#272 363
DSP36375#HS DSP36500#HS
351 442
DSP36375#FE DSP36500#FE
204 272
* KWS Stock Component (U-Trough Only) # = Specify Trough Style: Blank = U-Trough, T = Tubular, F = Flared, R = Rectangular
V Y V
S
w nv y n r n d
V R V R P R P B R R Z B
VV AS NO E
EV E
Y ___ _ __ _ _ __ _ __ _ _ _ D E _ __ _ _ _ ___ __ _
D gE n e
07 27 20
OR
A
C
AA/2
BA
C
A
D
E
1 1/2"
F
T
AB
A
C
73
Screw Conveyor Component Guide
inleT spOUTs
12 BOlT 20 BOlT 24 BOlT
I S F 1 4
For Inlets: F = Fixed
NOMENClaTUrE
IS = Inlet Spout
Screw Dia . A
B C D E F G H
J Part Number
Weight (Lbs .)Inlets Discharges Inlets Discharges Qty . Bolt Dia .
4” 5” 7-1/2” 7-1/2” 3/8” 3/8 2-1/4 X 2-1/4” 1-1/4 1/8 12 1/4” ISF4* 2
6” 7” 10” 10” 11/16” 11/16” 2-13/16” X 3” 1-1/2” 3/16” 12 3/8” ISF6* 5
9” 10” 13” 13-1/4” 1/2” 5/8” 4” X 4” 1-1/2” 3/16” 12 3/8” ISF9* 7
12” 13” 17” 17-1/4” 3/4” 7/8” 5-1/8” X 5-1/4” 2” 3/16” 12 3/8” ISF12* 12
14” 15” 19” 19-1/4” 3/4” 7/8” 3-1/2” 3-1/2” 3-1/2” 2” 3/16” 20 3/8” ISF14* 14
16” 17” 21” 21-1/4” 3/4” 7/8” 3-3/4” 4” 4” 2” 1/4” 20 3/8” ISF16* 15
18” 19” 24” 24-1/4” 1” 1-1/8” 4-7/16” 4-3/8” 4-3/8” 2-1/2” 1/4” 20 1/2” ISF18* 29
20” 21” 26” 26-1/4” 1” 1-1/8” 4-7/8” 4-3/4” 4-3/4” 2-1/2” 1/4” 20 1/2” ISF20* 32
24” 25” 30” 30-1/4” 1” 1-1/8” 5-5/8” 5-5/8” 5-1/2” 2-1/2” 1/4” 20 1/2” ISF24* 37
30” 31” 37” 36-1/4” 1-1/4” 1-3/8” 5-3/4” 5-3/4” 5-3/4” 3” 3/8” 24 1/2” ISF30 62
36” 37” 43” 43-1/4” 1-1/4” 1-3/8” 6-3/4” 6-3/4” 6-3/4” 3” 3/4” 24 1/2” ISF36 73
* KWS Stock Component (Only Includes Fixed Inlets) Note: Above table gives dimensions for the Discharge Flanges also.
T Y OF DR G
ENGIN A Q. FI ED
E
9/
D
F
D
C
C
BAH
G
J
hon 7 5a 44 5
U E
:\M Sc w ri Gu e L S L S
FULL LE E
N INEE G STANDARD
10-14-20
D I C VER
C
F
D
E
C
D
E
J
AB
USTOMER
: M C n e in u e H D VE L NL LT PATTERN
__ ___
BAC
D
E
F
C
D
E
F
J
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
Inlet spouts are typically located at one end of a screw conveyor on the top of the cover. Bulk
materials enter a screw conveyor through the inlet spout. Multiple inlet spouts can be used to feed a
screw conveyor. The screw conveyor must be designed for the total volumetric feed rate of all of the
inlets combined.
74
Screw Conveyor Component Guide
COveRs
C O V 1 2 1 4 U F L
NOMENClaTUrE
COV = Cover
Covers are placed over the trough and fastened in place to provide a FIXED enclosure for the bulk
material and to provide protection for personnel operating and maintaining the equipment. Standard
cover lengths are 10-feet for 4, 6, and 9-inch diameter screw conveyors. Standard cover lengths are
12-feet for screw conveyors 12-inch and larger in diameter. KWS recommends bolting all covers on
close centers to prevent access to the screw during operation.
flaNGED
Flanged covers are manufactured with formed
flanges on each side to provide extra rigidity.
KWS recommends using flanged covers with
U, flared and rectangular troughs because
covers are held in place by the formed flanges
on each side. KWS recommends bolting all
covers on close centers to prevent access to
the screw during operation.
flaT
Flat covers are manufactured from thin gauge
flat metal and do not have the rigidity of
flanged covers. KWS does not recommend
the use of flat covers because flat covers can
easily slide off the top of a screw conveyor and
cause injury to personnel. KWS recommends
bolting all covers on close centers to prevent
access to the screw during operation.
Cover Thickness14 = 14GA 10 = 10GA12 = 12GA 316 = 3/16”
SF = Semi-Flanged F = FlatFL = FlangedHR = Hip RoofSH = Shroud
Trough Style U = U-Trough/RectangularF = Flared
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
75
Screw Conveyor Component Guide
COveRs
SEMI-flaNGED
Semi-flanged covers are manufactured with a slight
formed flange on each side to provide some
rigidity. KWS recommends flanged covers in place
of semi-flanged covers in most applications. Cover
sections are typically secured using spring clamps.
KWS recommends bolting all covers on close
centers to prevent access to the screw during
operation.
hIP rOOf
Hip roof or ridged covers are manufactured with a
center peak for outdoor applications. Snow or rain
runs off the hip roof cover similar to a roof on a
house. Formed flanges on both sides of the cover
provide extra rigidity. KWS recommends bolting all
covers on close centers to prevent access to the
screw during operation.
ShrOUD
Shrouds are manufactured to fit in U, flared or
rectangular troughs and create a tubular cross
section for screw feeders and steeply inclined
screw conveyors. Standard covers can be used
with shrouds. Shrouds are bolted on both sides
of the trough for easy removal and include an
integrated batten bar.
76
Screw Conveyor Component Guide
COveRs
SEMI-flaNGED
flaNGED
flaT
Screw Dia .
Cover Thk .
A • (Approx)
B • C •Semi-Flanged Flanged Flat
Part NumberWt .
(Lbs .)Part Number
Wt . (Lbs .)
Part NumberWt .
(Lbs .)4” 14 Ga . 8-3/8” 8” 7-3/4” COV414#SF 2 COV414#FL* 3 COV414#F 26” 14 Ga . 10-7/8” 10-1/2” 9-3/4” COV614#SF 3 COV614#FL* 4 COV614#F 2
9” 14 Ga . 12 Ga . 14-3/8” 14” 13-1/4” COV914#SF
COV912#SF4 5
COV914#FL* COV912#FL
5 7
COV914#F COV912#F
3 6
12” 14 Ga . 12 Ga . 18-1/4” 18” 17-1/4” COV1214#SF
COV1212#SF5 7
COV1214#FL* COV1212#FL
6 8
COV1214#F COV1212#F
5 8
14” 14 Ga . 12 Ga . 20-1/4” 20” 19-1/4” COV1414#SF
COV1412#SF6 8
COV1414#FL* COV1412#FL
6 9
COV1414#F COV1412#F
5 9
16” 14 Ga . 12 Ga . 22-1/4” 22” 21-1/4” COV1614#SF
COV1612#SF6 9
COV1614#FL* COV1612#FL
7 10
COV1614#F COV1612#F
6 10
18” 12 Ga . 10 Ga . 25-1/4” 25” 24-1/4” COV1812#SF
COV1810#SF10 14
COV1812#FL COV1810#FL*
11 14
COV1812#F COV1810#F
6 11
20” 12 Ga . 10 Ga . 27-1/4” 27” 26-1/4” COV2012#SF
COV2010#SF11 15
COV2012#FL COV2010#FL*
12 15
COV2012#F COV2010#F
7 12
24” 12 Ga . 10 Ga . 31-1/4” 31” 30-1/4” COV2412#SF
COV2410#SF12 17
COV2412#FL COV2410#FL*
14 18
COV2412#F COV2410#F
11 14
30” 10 Ga . 39-3/8” 39” 38-1/2” COV3010#SF 21 COV3010#FL 22 COV3010#F 2136” 3/16” 45-3/8” 45” 44-1/2” COV36316#SF 32 COV36316#FL 33 COV36316#F 32
* KWS Stock Component (U-Troughs only) • Dimensions will change for flared troughs # Trough Style; U = U-Trough/Rectangular, F = Flared
B
7/8"
IS K P VE \F FL D S i
APP O
R V V R P R P R B R
P ROVEDAPPRO ED A NOTED
R SU MIT
B _ _ _ _____
2 5
C
A
77
Screw Conveyor Component Guide
COveRs
hIP rOOf ShrOUD
Screw Dia .
Cover Thk .
A • B • C • DHip Roof Shroud
Part NumberWt . /Ft . (Lbs .)
Part NumberWt . /Ft . (Lbs .)
4” 14 Ga . 8” 5” 3-5/8” 8” COV414#HR 2 N/A
6” 14 Ga . 12 Ga . 10-1/2” 7” 4-1/2” 12” COV614#HR
COV612#HR4 4
N/A COV612#SH*
8
9”14 Ga . 12 Ga . 3/16”
14” 10” 6-1/8” 18”COV914#HR COV912#HR
X
4 6 X
N/A N/A
COV9316#SH*
23
12”14 Ga . 10 Ga 3/16”
18” 13” 7-3/4” 24”COV1214#HR COV1210#HR
X
5 10 X
N/A N/A
COV12316#SH*
41
14”14 Ga . 10 Ga . 3/16”
20” 15” 9-1/4” 28”COV1414#HR COV1410#HR
X
6 11 X
N/A N/A
COV14316#SH*
60
16”14 Ga . 10 Ga . 3/16”
22” 17” 10-5/8” 32”COV1614#HR COV1610#HR
X
7 12 X
N/A N/A
COV16316#SH*
78
18”12 Ga . 10 Ga . 3/16”
25” 19” 12-1/8” 36”COV1812#HR COV1810#HR
X
10 12 X
N/A N/A
COV18316#SH*
98
20”12 Ga . 10 Ga . 3/16”
27” 21” 13-1/2” 40”COV2012#HR COV2010#HR
X
11 15 X
N/A N/A
COV20316#SH*
114
24”12 Ga . 10 Ga . 3/16”
31” 25” 16-1/2” 48”COV2412#HR COV2410#HR
X
14 19 X
N/A N/A
COV24316#SH*
175
30”10 Ga . 3/16” 1/4”
39” 31” 20-1/4” 60”COV3010#HR
X X
25
N/A N/A
COV30250#SH
290
36” 3/16” 1/4” 45” 37” 24-3/8” 72” COV36316#HR
X36
N/A COV36250#SH
330
* KWS Stock Component (U-Troughs only) • Dimensions will change for flared troughs # Trough Style; U = U-Trough/Rectangular, F = Flared
T A
ICGRA
3 CONV R E
E \H d
9 0 4 P P
K MANU U I O D
HI ROO D M
DI E S ON O B V RBY CON R CTOR
A
7/8"2"
USTOMER
T y r
R R
07 09
C
B D
78
Screw Conveyor Component Guide
BaTTEN Bar
bUTTsTRaps and baTTen baRs
Buttstraps fit over the top of the joint between two cover sections. Gasket material is used under the
buttstrap to provide a sealed design. The buttstrap is bolted on both sides through the cover and
trough flange to create a dust-tight enclosure.
Batten bars are mounted flush with the top of the trough flange and fit under the joint between two
cover sections. Gasket material is used over the batten bar to provide a seal. Batten bars can be
provided with weld studs or rivnuts for securing the cover sections to the batten bar to create a
dust-tight enclosure.
B S 1 2 1 4 UBB = Batten BarBS = Buttstrap
NOMENClaTUrE
For Buttstrap:ThicknessFor Batten Bar: Blank
For Buttstrap:U = U–TroughF = Flared
BUTTSTraP
Screw Dia .
A B C D E FG
BoltsH
Buttstrap Batten Bar
Part Number
Weight (Lbs .) Part Number Weight
(Lbs .)
4” 5” 1” 3” 2” 5/8” 3/16” 3/8” 8-3/8” BS4#@ 1 BB4 16” 7” 1-1/4” 3” 2” 3/4” 3/16” 3/8” 10-7/8” BS6#@ 1 BB6 29” 10” 1-1/2” 4” 2-1/2” 7/8” 1/4” 1/2” 14-3/8” BS9#@ 1 BB9 412” 13” 2” 4” 2-1/2” 1-1/8” 1/4” 5/8” 18-3/8” BS12#@ 2 BB12 514” 15” 2 4” 2-1/2” 1-1/8” 1/4” 5/8” 20-3/8” BS14#@ 2 BB14 616” 17” 2 5” 2-1/2” 1-1/8” 3/8” 5/8” 22-3/8” BS16#@ 2 BB16 1118” 19” 2-1/2” 5” 3-1/2” 1-3/8” 3/8” 5/8” 25-3/8” BS18#@ 3 BB18 1320” 21” 2-1/2” 5” 3-1/2” 1-3/8” 3/8” 3/4” 27-3/8” BS20#@ 4 BB20 1424” 25” 2-1/2” 5” 3-1/2” 1-3/8” 3/8” 3/4” 31-3/8” BS24#@ 4 BB24 1730” 31” 3” 6” 3-1/2” 1-3/4” 1/4” 3/4 39-3/8” BS30#@ 7 BB30 • 2736” 37” 3” 6” 3-1/2” 1-3/4” 1/4” 3/4” 45-3/8” BS36#@ 7 BB36 • 32
• Requires a Formed Channel Support Bar # = Thickness Note: Dimensions in the above table are for U-Troughs only. @ = Trough Type; U = U-Trough, F = Flared
For Batten Bar: Blank
F D
EB
A
G
C
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
BU S R
1
TF = TW TU =
AR
D
Bo
ttstrap Bar
/8 BS § B4 1 1 / / 1/ 8 1/2 / S §
12 1/ / / / 12§ /2 / / S1 §
1 2 1/2 8 5 2 /4 S16§ 1 /2 1/2 8 3 /4 S18§ 20 1 /2 1/2 8 3/ 7- /4 S20§ 24 5 /2 1/2 8 3/ 1- /4 S24§ 30 1 -1/2 4 3/ 9- /4 S30§ 3 1/2 4 3/4 4 S36§ • 3
S p es d Ch Support § and T o
butts rap olts on both es of the b tt trap through the cover an trough flange crea e a dust tight enclos re
Batten bars a e mounted flus w t the to of he trough fla e and fit under t e joint between to cove sectio s prov de a s a G
79
Screw Conveyor Component Guide
hangeR pOCKeT
Hanger pockets allow the use of standard U-trough hangers in tubular housings. Hanger pockets
are continuously welded on the top of a tubular housing at each hanger bearing location. A
hanger bolts to the sides of the hanger pocket and space is allowed for bearing maintenance and
replacement. Standard 216 and 226 style hanger bearings can be used with hanger pockets. A
bolted cover seals the hanger pocket.
H G P 1 2 3 1 6
NOMENClaTUrE
HGP = Hanger Pocket
Screw Dia .
Part Number
A BMaterial
ThicknessWeight (Lbs .)
4”HGP414 HGP412 HGP410
12” 3-3/4”14 Ga . 12 Ga . 10 Ga .
3 5 7
6”HGP614 HGP612 HGP610
18” 5”14 Ga . 12 Ga . 10 Ga .
5 7 9
9”HGP914 HGP912 HGP910
HGP931618” 7-1/8”
14 Ga . 12 Ga . 10 Ga . 3/16”
8 10 13 18
12”HGP1212 HGP1210
HGP12316 HGP12250
24” 8-7/8”12 Ga . 10 Ga . 3/16” 1/4”
15 20 27 36
14”HGP1412 HGP1410
HGP14316 HGP14250
20” 10-1/8”12 Ga . 10 Ga . 3/16” 1/4”
19 24 33 44
16”HGP1612 HGP1610
HGP16316 HGP16250
24” 11-1/8”12 Ga . 10 Ga . 3/16” 1/4”
23 30 41 55
Screw Dia .
Part Number
A BMaterial
ThicknessWeight (Lbs .) .
18”HGP1810
HGP18316 HGP18250
26” 12-3/8”10 Ga . 3/16” 1/4”
37 51 68
20”HGP2010
HGP20316 HGP20250
26” 14”10 Ga . 3/16” 1/4”
46 63 84
24”HGP2410
HGP24316 HGP24250
26” 17”10 Ga . 3/16” 1/4”
61 83
111
30” HGP30250 HGP30375 32” 20” 1/4”
3/8”149 182
36” HGP36250 HGP36375 34” 23” 1/4”
3/8”199 235
Material Thickness14 = 14GA 316 = 3/16”12 = 12GA 250 = 1/4”10 = 10GA 375 = 3/8”
PO T
CUS OM
3 ON
: 8
BUR SO ,
ATE
b te
n i e n ui dw
M
VA
P R P R
ROVED
MI
DAT
gEn neM ufa
KWS M N
CON
A
B
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
80
Screw Conveyor Component Guide
saddles
Saddles provide support for a screw conveyor anywhere along the length of the trough. Saddles
are welded to the bottom of a trough section at the desired support location and then fastened
to the floor or structural support. A standard saddle will fit U-trough, flared trough, and tubular
housings. Rectangular troughs require special saddles.
S a D 1 2
NOMENClaTUrE
SAD = Saddle
Screw Dia .
A B C D E F GH
BoltsPart
NumberWeight (Lbs .)
4” 5-3/4” 4-5/8” 7-3/8” 3/16” 1-1/2” 7/8” 1-3/8” 3/8” SAD4* 2
6” 8-1/8” 5-5/8” 10” 3/16” 1-1/2” 13/16” 1-3/4” 3/8” SAD6* 3
9” 9-3/8” 7-7/8” 12” 3/16” 2-1/2” 1-5/16” 2” 1/2” SAD9* 4
12” 12-1/4” 9-5/8” 15” 1/4” 2-1/2” 1-3/8” 2-1/4” 5/8” SAD12* 6
14” 13-1/2” 10-7/8” 16-1/2” 1/4” 2-1/2” 1-3/8” 2-3/4” 5/8” SAD14* 8
16” 14-7/8” 12” 18” 1/4” 3” 1-3/4” 2-3/4” 5/8” SAD16* 10
18” 16” 13-3/8” 19-1/8” 1/4” 3” 1-3/4” 2-3/4” 5/8” SAD18* 11
20” 19-1/4” 15” 22-3/4” 1/4” 3-1/2” 2” 2-3/4” 3/4” SAD20* 15
24” 20” 18-1/8” 24” 1/4” 4” 2-1/4” 2-3/4” 3/4” SAD24* 17
30” 30” 21-1/2” 38” 3/8” 4-1/2” 2-1/2” 4” 3/4” SAD30 20
36” 36” 24” 44” 1/2” 4-1/2” 2-1/2” 4” 3/4” SAD36 25
* KWS Stock Component
HIP
: \KWS S ri g uide I ADD E w
V R V P P P P B
PPR R I ES
_ _ _
Designg
M a
AC
D
B
H
G
FE
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
81
Screw Conveyor Component Guide
feeT
Feet provide support for a screw conveyor at each trough connection. Feet are bolted through the
trough flanges and then fastened to the floor or structural support. A standard foot will fit U-trough,
flared trough and tubular trough housing except for 4”, 6”, 18”, and 20” which are unique for tubular
housings. Rectangular troughs require special feet.
F T 1 2
NOMENClaTUrE
FT = Foot
Screw Dia .
A B C D E F
G bolts
H Bolts
Part Number
Weight (Lbs .)
4” 5-3/4” 4-5/8” 7-3/8” 3/16” 1-1/2” 7/8” 3/8” 3/8” FT4* 2
6” 8-1/8” 5-5/8” 10” 3/16” 1-1/2” 13/16” 3/8” 3/8” FT6* 3
9” 9-3/8” 7-7/8” 12” 3/16” 2-1/2” 1-5/16” 3/8” 1/2” FT9* 4
12” 12-1/4” 9-5/8” 15” 1/4” 2-1/2” 1-5/8” 1/2” 5/8” FT12* 6
14” 13-1/2” 10-7/8” 16-1/2” 1/4” 2-1/2” 1-3/8” 1/2” 5/8” FT14* 8
16” 14-7/8” 12” 18” 1/4” 3” 1-3/4” 5/8” 5/8” FT16* 10
18” 16” 13-3/8” 19-1/8” 1/4” 3” 1-3/4” 5/8” 5/8” FT18* 11
20” 19-1/4” 15” 22-3/4” 1/4” 3-1/2” 2” 5/8” 3/4” FT20* 15
24” 20” 18-1/8” 24” 1/4” 4” 2-1/4” 5/8” 3/4” FT24* 17
30” 30” 21-1/2” 38” 3/8” 4-1/2” 2-1/2” 5/8” 3/4” FT30 21
36” 36” 24” 44” 1/2” 4-1/2” 2-1/2” 5/8” 3/4” FT36 25
* KWS Stock Component
TO
C Y & E F E D
_ _ __ __ __ _ __
eract
A L B VER F E OR
AC
G
D
B
H
FE
Screw Diameter4 = 4” 14 = 14” 24 = 24”6 = 6” 16 = 16” 30 = 30”9 = 9” 18 = 18” 36 = 36”
12 = 12” 20 = 20”
82
Screw Conveyor Component Guide
bOlT ReqUiRemenTs
CONVEYOr DIaMETEr: 4” - 14”
CONVEYOr DIaMETEr: 16” - 36”
Components Assembled
Conveyor Diameter4 6 9 12 14
No Size No Size No Size No Size No SizeCovers (Per Section)
on 24” Centers 12 3/8” x 1-1/2” 12 3/8” x 1-1/2” 12 3/8” x 1-1/2” 14 3/8” x 1-1/2” 14 3/8” x 1-1/2”
Trough Flange U-Trough 6 3/8” x 1-1/2” 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 8 1/2” x 2” 8 1/2” x 2”Tubular 6 3/8” x 1-1/2” 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 8 1/2” x 2” 8 1/2” x 2”Flared N/A N/A 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 8 1/2” x 2” 10 1/2” x 2”
Rectangular N/A N/A 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 10 1/2” x 2” 10 1/2” x 2”Flush Discharge Ends 6 3/8” x 1-1/2” 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 8 1/2” x 2” 8 1/2” x 2”
Foot U-Trough 2 3/8” x 1-1/2” 2 3/8” x 1-1/2” 2 3/8” x 1-1/2” 2 1/2” x 2” 2 1/2” x 2”Tubular 3 3/8” x 1-1/2” 3 3/8” x 1-1/2” 3 3/8” x 1-1/2” 3 1/2” x 2” 3 1/2” x 2”Flared N/A N/A 2 3/8” x 1-1/2” 2 3/8” x 1-1/2” 2 1/2” x 2” 2 1/2” x 2”
Rectangular N/A N/A 2 3/8” x 1-1/2” 2 3/8” x 1-1/2” 2 1/2” x 2” 2 1/2” x 2”Pipe Supports 2 3/8” x 1-1/2” 2 3/8” x 1-1/2” 2 1/2” x 2” 2 5/8” x 2” 2 5/8” x 2”Inlet/Discharge
Square 12 1/4” x ”1 12 3/8” x 1-1/2” 12 3/8” x 1-1/2” 12 3/8” x 1-1/2” 20 3/8” x 1-1/2”Round 6 3/8” x 1-1/2” 6 3/8” x 1-1/2” 8 3/8” x 1-1/2” 8 1/2” x 1-1/2” 8 1/2” x 1-1/2”
Hanger/Batten Bar 4 3/8” x 1” 4 3/8” x 1” 4 3/8” x 1” 4 1/2” x 1-1/2” 4 1/2” x 1-1/2”
Components Assembled
Conveyor Diameter16 18 20 24 30 36
No Size No Size No Size No Size No Size No SizeCovers (Per Section)
on 24” Centers14 3/8” x 1-1/2” 14 3/8” x 1-1/2” 14 3/8” x 1-1/2” 14 3/8” x 1-1/2” 14 3/8” x 1-1/2” 14 3/8” x 1-1/2”
Trough Flange U-Trough 8 5/8” x 2” 10 5/8” x 2” 10 5/8” x 2” 12 5/8” x 2” 14 5/8” x 2-1/2” 16 5/8” x 2-1/2”Tubular 8 5/8” x 2” 10 5/8” x 2” 10 5/8” x 2” 12 5/8” x 2” 14 5/8” x 2-1/2” 16 5/8” x 2-1/2”Flared 10 5/8” x 2” 10 5/8” x 2” 10 5/8” x 2” 12 5/8” x 2” 14 5/8” x 2-1/2” 16 5/8” x 2-1/2”
Rectangular 10 5/8” x 2” 12 5/8” x 2” 14 5/8” x 2” 14 5/8” x 2” 16 5/8” x 2-1/2” 18 5/8” x 2-1/2”Flush Discharge Ends 8 5/8” x 2” 10 5/8” x 2” 10 5/8” x 2” 12 5/8” x 2” 12 5/8” x 2-1/2” 14 5/8” x 2-1/2”
Foot U-Trough 2 5/8” x 2-1/2” 2 5/8” x 2-1/2” 2 5/8” x 2-1/2” 2 5/8” x 2-1/2” 4 5/8” x 3” 4 5/8” x 3”Tubular 3 5/8” x 2-1/2” 3 5/8” x 2-1/2” 3 5/8” x 2-1/2” 3 5/8” x 2-1/2” 4 5/8” x 3” 4 5/8” x 3”Flared 2 5/8” x 2-1/2” 2 5/8” x 2-1/2” 2 5/8” x 2-1/2” 4 5/8” x 2-1/2” 4 5/8” x 3” 4 5/8” x 3”
Rectangular 2 5/8” x 2-1/2” 4 5/8” x 2-1/2” 4 5/8” x 2-1/2” 4 5/8” x 2-1/2” 4 5/8” x 3” 4 5/8” x 3”Pipe Supports 2 5/8” x 2” 2 5/8” x 2” 2 3/4” x 2-1/2” 2 3/4” x 2-1/2” 2 3/4” x 2-1/2” 2 3/4” x 2-1/2”Inlet/Discharge
Square 20 1/2” x 1-1/2” 20 1/2” x 1-1/2” 20 1/2” x 1-1/2” 20 1/2” x 1-1/2” 24 1/2” x 2” 24 1/2” x 2”Round 8 5/8” x 2” 10 5/8” x 2” 10 5/8” x 2” 12 5/8” x 2”
Hanger/Batten Bar 4 1/2” x 2” 4 5/8” x 2” 4 5/8” x 2” 4 5/8” x 2-1/2” 4 3/4” x 2-1/2” 4 3/4” x 2-1/2”
83
Screw Conveyor Component Guide
bOlT ReqUiRemenTs
ShafT DIaMETEr: 1” TO 2-7/16”
ShafT DIaMETEr: 3” - 4-7/16”
Components Assembled
Shaft Diameter
1” 1-1/2” 2” 2-7/16”
Qty . Size Qty . Size Qty . Size Qty . Size
End Bearings To Trough End
SCP Adapter X X 4 1/2” x 2” 4 1/2” X 2” 4 5/8” X 2-1/2”
Ball, Flanged 4 7/16” x 2” 4 1/2” x 2” 4 5/8” x 2-1/2” 4 5/8” x 2-1/2”
Roller, Flanged X X 4 1/2” x 2-1/2” 4 1/2” X 2-1/2” 4 5/8” X 3”
Ball, Pillow Block 2 3/8” x 2” 2 1/2” x 2-1/2” 2 5/8” x 2-1/2” 2 5/8” x 2-1/2”
Roller, Pillow Block X X 2 1/2” x 2-1/2” 2 5/8” x 3” 2 5/8” x 3-1/2”
Seals to Trough End
Flanged Gland 4 3/8” x 2” 4 1/2” x 2” 4 1/2” x 2” 4 5/8” x 2”
Plate 4 3/8” x 1-1/2” 4 1/2” x 2” 4 5/8” x 2-1/2” 4 5/8” x 2-1/2”
Plate w/Ball 4 3/8” x 2-1/2” 4 1/2” x 3” 4 5/8” x 3” 4 5/8” x 3”
Plate w/ Roller N/A N/A 4 1/2” x 3” 4 1/2” x 3-1/2” 4 5/8” x 4”
Split Gland 2 3/8” x 4” 2 1/2” x 4-1/2” 2 1/2” x 4-1/2” 2 5/8” x 4-1/2”
Waste Pack 4 3/8” x 3-1/2” 4 1/2” x 3” 4 5/8” x 3-1/2” 4 5/8” x 3-1/2”
Waste Pack w/Ball 4 3/8” x 3-1/2” 4 1/2” x 4” 4 5/8” x 4” 4 5/8” x 4”
Waste Pack w/Roller N/A N/A 4 1/2” x 4-1/2” 4 1/2” x 4-1/2 ” 4 5/8” x 5”
Components Assembled Shaft Diameter
3” 3-7/16” 3-15/16” 4-7/16”Qty . Size Qty . Size Qty . Size Qty . Size
End Bearings To Trough End
SCP Adapter 4 3/4” X 3” 4 3/4” x 3” 4 7/8” x 3” 4 7/8” x 3”
Ball, Flanged 4 3/4” x 3” 4 3/4” x 3” N/A N/A N/A N/A
Roller, Flanged 4 3/4” X 3- 1/2” 4 3/4” x 4” 4 7/8” x 4-1/2” 4 7/8” x 5”
Ball, Pillow Block 2 7/8” x 3-1/2” 2 7/8” x 3-1/2” N/A N/A N/A N/A
Roller, Pillow Block 2 3/4” x 4” 2 7/8” x 4-1/2” 4 3/4” x 4-1/2” 4 3/4” x 5”
Seals to Trough End
Flanged Gland 4 3/4” x 2” 4 3/4” x 2-1/2” 4 7/8” x 3” 4 7/8” x 3”
Plate 4 3/4” x 3” 4 3/4” x 3” 4 7/8” x 3” 4 7/8” x 3”
Plate w/Ball 4 3/4” x 4” 4 3/4” x 4” N/A N/A N/A N/A
Plate w/ Roller 4 3/4” x 4-1/2” 4 3/4” x 5” 4 7/8” x 5-1/2” 4 7/8” x 5-1/2”
Split Gland 2 5/8” x 5” 2 3/4” x 6” 2 7/8” x 6” 2 7/8” x 6”
Waste Pack 4 3/4” x 4” 4 3/4” x 4-1/2” 4 7/8” x 4-1/2” 4 7/8” x 4-1/2”
Waste Pack w/Ball 4 3/4” x 4-1/2” 4 3/4” x 5-1/2” N/A N/A N/A N/A
Waste Pack w/Roller 4 3/4” x 5-1/2” 4 3/4” x 6” 4 7/8” x 7” 4 7/8” x 7”
84
Screw Conveyor Component Guide
dRive aRRangemenTs
KWS utilizes a variety of drive arrangements and gear reducer manufacturers. Each drive arrangement
shown below provides unique advantages for specific applications. KWS designs each drive with a
minimum of 1.4 service factor (Class II) to ensure long life and reduced maintenance. Spare parts are
available through authorized power transmission distributors all across the U.S. and Canada.
SCrEW CONVEYOr DrIVE
Screw conveyor drives are the most common drive
arrangement utilizing a screw conveyor adapter that
bolts to the trough end of a screw conveyor. The gear
reducer is flange mounted directly to the trough end to
provide a simple, rigid assembly.
BUlKhEaD
Bulkhead trough ends are used in applications where
there is a need to locate the drive away from the
trough end. When conveying bulk materials at high
temperatures, the drive must be located away from the
source of heat to prevent drive failure. Also, if a special
shaft seal is required, bulkhead trough ends provide
clearance for the seal. Flanged gland, split gland and
mechanical seals are typically used with bulkhead
trough ends.
TOrqUE arM
Torque arm trough ends allow shaft-mounted reducers
to ”float” to handle shaft run-out. A pillow block
bearing is required to support the screw when using
a torque arm trough end. Similar to bulkhead trough
ends, torque arm trough ends are used in special
applications where there is a need to locate the drive
away from the trough end. Flanged gland, split gland
and mechanical seals are typically used with torque
arm trough ends.
85
Screw Conveyor Component Guide
Notes
86
Screw Conveyor Component Guide
Notes
DesignEngineeringManufacturing
3041 Conveyor Drive | Burleson, TX 76028Toll-free: (800) 543-6558 | Local Phone: (817) 295-2240 | Fax: (817) 447-8528
Inquiries: [email protected] | www.kwsmfg.com
MADE IN THE USA
ISO 9001Certified
Conveying Knowledge, Workmanship, Solutions
What makes KWS different from other manufacturers?At KWS we understand the needs and exceed the expectations of our Customers. As an ISO-9001 certified company, quality is integrated into every aspect of our processes. Quality is defined by the Customer, and derived from the total KWS Customer experience. It’s not just product quality, but quality throughout every step of the Sales, Engineering and Manufacturing processes. Quality starts with our first Customer contact and never ends.
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